Commit Graph

80 Commits

Author SHA1 Message Date
Marc-André Lureau
2c8ebac7cc vga: fix invalid read after free
After calling dpy_gfx_replace_surface(s->con, surface), the outer
surface is invalid.

==5370== Invalid read of size 4
==5370==    at 0x460229: surface_bits_per_pixel (console.h:250)
==5370==    by 0x466A81: get_depth_index (vga.c:1173)
==5370==    by 0x467EC2: vga_draw_graphic (vga.c:1718)
==5370==    by 0x4687A5: vga_update_display (vga.c:1914)
==5370==    by 0x2A782E: qxl_hw_update (qxl.c:1766)
==5370==    by 0x3EB83B: graphic_hw_update (console.c:254)
==5370==    by 0x3FBE31: qemu_spice_display_refresh (spice-display.c:418)
==5370==    by 0x2A7D01: display_refresh (qxl.c:1886)
==5370==    by 0x3EEE1C: dpy_refresh (console.c:1436)
==5370==    by 0x3EB543: gui_update (console.c:192)
==5370==    by 0x3C43B3: timerlist_run_timers (qemu-timer.c:488)
==5370==    by 0x3C4416: qemu_clock_run_timers (qemu-timer.c:499)
==5370==  Address 0x22ffb1e0 is 0 bytes inside a block of size 56 free'd
==5370==    at 0x4A074C4: free (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==5370==    by 0x4245FC: free_and_trace (vl.c:2771)
==5370==    by 0x50899AE: g_free (gmem.c:252)
==5370==    by 0x3EE8D3: qemu_free_displaysurface (console.c:1332)
==5370==    by 0x3EEDB7: dpy_gfx_replace_surface (console.c:1427)
==5370==    by 0x467EB6: vga_draw_graphic (vga.c:1714)
==5370==    by 0x4687A5: vga_update_display (vga.c:1914)
==5370==    by 0x2A782E: qxl_hw_update (qxl.c:1766)
==5370==    by 0x3EB83B: graphic_hw_update (console.c:254)
==5370==    by 0x3FBE31: qemu_spice_display_refresh (spice-display.c:418)
==5370==    by 0x2A7D01: display_refresh (qxl.c:1886)
==5370==    by 0x3EEE1C: dpy_refresh (console.c:1436)

Signed-off-by: Marc-André Lureau <marcandre.lureau@gmail.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1383664554-15248-1-git-send-email-marcandre.lureau@gmail.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-11-05 20:01:11 -08:00
Peter Maydell
7d579514a5 bswap.h: Remove cpu_to_32wu()
Replace the legacy cpu_to_32wu() with stl_p().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1383669517-25598-10-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-11-05 19:57:47 -08:00
Gerd Hoffmann
4a46c99c81 qxl: replace pipe signaling with bottom half
qxl creates a pipe, then writes something to it to wake up the iothread
from the spice server thread to raise an irq.  These days qemu bottom
halves can be scheduled from threads and signals, so there is no reason
to do this any more.  Time to clean it up.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-11-04 12:31:42 +01:00
Anthony Liguori
b0eb759fb2 pci, pc, acpi fixes, enhancements
This includes some pretty big changes:
 - pci master abort support by Marcel
 - pci IRQ API rework by Marcel
 - acpi generation support by myself
 
 Everything has gone through several revisions, latest versions have been on
 list for a while without any more comments, tested by several
 people.
 
 Please pull for 1.7.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'mst/tags/for_anthony' into staging

pci, pc, acpi fixes, enhancements

This includes some pretty big changes:
- pci master abort support by Marcel
- pci IRQ API rework by Marcel
- acpi generation support by myself

Everything has gone through several revisions, latest versions have been on
list for a while without any more comments, tested by several
people.

Please pull for 1.7.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Tue 15 Oct 2013 07:33:48 AM CEST using RSA key ID D28D5469
# gpg: Can't check signature: public key not found

* mst/tags/for_anthony: (39 commits)
  ssdt-proc: update generated file
  ssdt: fix PBLK length
  i386: ACPI table generation code from seabios
  pc: use new api to add builtin tables
  acpi: add interface to access user-installed tables
  hpet: add API to find it
  pvpanic: add API to access io port
  ich9: APIs for pc guest info
  piix: APIs for pc guest info
  acpi/piix: add macros for acpi property names
  i386: define pc guest info
  loader: allow adding ROMs in done callbacks
  i386: add bios linker/loader
  loader: use file path size from fw_cfg.h
  acpi: ssdt pcihp: updat generated file
  acpi: pre-compiled ASL files
  acpi: add rules to compile ASL source
  i386: add ACPI table files from seabios
  q35: expose mmcfg size as a property
  q35: use macro for MCFG property name
  ...

Message-id: 1381818560-18367-1-git-send-email-mst@redhat.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-10-31 16:58:32 +01:00
Anthony Liguori
989644915c Merge remote-tracking branch 'bonzini/iommu-for-anthony' into staging
# By Paolo Bonzini (10) and others
# Via Paolo Bonzini
* bonzini/iommu-for-anthony:
  exec: remove qemu_safe_ram_ptr
  icount: make it thread-safe
  icount: document (future) locking rules for icount
  icount: prepare the code for future races in calling qemu_clock_warp
  icount: reorganize icount_warp_rt
  icount: use cpu_get_icount() directly
  timer: add timer_mod_anticipate and timer_mod_anticipate_ns
  timer: extract timer_mod_ns_locked and timerlist_rearm
  timer: make qemu_clock_enable sync between disable and timer's cb
  qemu-thread: add QemuEvent
  timer: protect timers_state's clock with seqlock
  seqlock: introduce read-write seqlock
  vga: Mark relevant portio lists regions as coalesced MMIO flushing
  cirrus: Mark vga io region as coalesced MMIO flushing
  portio: Allow to mark portio lists as coalesced MMIO flushing
  compatfd: switch to QemuThread
  memory: fix 128 arithmetic in info mtree

Message-id: 1382024935-28297-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-10-18 10:01:49 -07:00
Jan Kiszka
c46860ea53 vga: Mark relevant portio lists regions as coalesced MMIO flushing
This allows to remove the explicit qemu_flush_coalesced_mmio_buffer
calls.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-10-17 17:24:15 +02:00
Jan Kiszka
eb25a1d9d4 cirrus: Mark vga io region as coalesced MMIO flushing
This allows to remove the explicit qemu_flush_coalesced_mmio_buffer
calls - the memory core will invoke them now.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-10-17 17:24:15 +02:00
Gerd Hoffmann
9fa032866d spice: fix multihead support
This patch fixes spice display initialization to handle
multihead properly.

spice-core now keeps track of which QemuConsole has a spice
display channel attached to it and which has not.  It also
manages display channel ids.

spice-display looks at all QemuConsoles and will pick up any
graphic console not yet bound to a spice channel (which in practice
are all non-qxl graphic devices).

Result is that
 (a) you'll get a spice client window for each graphical device
     now (first only without this patch), and
 (b) mixing qxl and non-qxl vga cards works properly.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-10-17 12:42:54 +02:00
Marc-André Lureau
26defe81f6 spice: replace use of deprecated API
hose API are deprecated since 0.11, and qemu depends on 0.12 already.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-10-17 12:25:25 +02:00
Marcel Apfelbaum
9e64f8a3fc hw: set interrupts using pci irq wrappers
pci_set_irq and the other pci irq wrappers use
PCI_INTERRUPT_PIN config register to compute device
INTx pin to assert/deassert.

An irq is allocated using pci_allocate_irq wrapper
only if is needed by non pci devices.

Removed irq related fields from state if not used anymore.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-10-14 17:11:45 +03:00
Gerd Hoffmann
521e759cf1 qxl: compile only once
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-09-18 11:13:29 +02:00
Gerd Hoffmann
b0297b4a82 qxl: simplify page dirtying
No need to do target page size calculations here,
memory_region_set_dirty will care for us.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-09-18 11:13:29 +02:00
Gerd Hoffmann
60b3b2a55f qxl: simplify qxl_rom_size
Nowdays rom size is fixed at 8192 for live migration compat reasons.
So we can ditch the pointless math trying to calculate the size needed.
Also make the size sanity check fail at compile time not runtime.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-09-18 11:13:29 +02:00
Gerd Hoffmann
9efc2d8d81 qxl: define qxl operating on 4k pages
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-09-18 11:13:29 +02:00
Anthony Liguori
2d1fe1873a ARM queue:
* aarch64 preparation patchset (excluding the defconfigs, so this
    doesn't actually enable the new targets yet)
  * minor bugfixes and cleanups
  * disable "-cpu any" in system emulation mode
  * fix ARMv7M stack alignment on reset
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Merge remote-tracking branch 'pmaydell/tags/pull-target-arm-20130910' into staging

ARM queue:
 * aarch64 preparation patchset (excluding the defconfigs, so this
   doesn't actually enable the new targets yet)
 * minor bugfixes and cleanups
 * disable "-cpu any" in system emulation mode
 * fix ARMv7M stack alignment on reset

# gpg: Signature made Tue 10 Sep 2013 01:46:11 PM CDT using RSA key ID 14360CDE
# gpg: Can't check signature: public key not found

# By Alexander Graf (13) and others
# Via Peter Maydell
* pmaydell/tags/pull-target-arm-20130910: (28 commits)
  configure: Add handling code for AArch64 targets
  linux-user: Add AArch64 support
  linux-user: Allow targets to specify a minimum uname release
  linux-user: Add AArch64 termbits.h definitions
  linux-user: Implement cpu_set_tls() and cpu_clone_regs() for AArch64
  linux-user: Make sure NWFPE code is 32 bit ARM only
  linux-user: Add signal handling for AArch64
  linux-user: Fix up AArch64 syscall handlers
  linux-user: Add syscall number definitions for AArch64
  linux-user: Add cpu loop for AArch64
  linux-user: Don't treat AArch64 cpu names specially
  target-arm: Add AArch64 gdbstub support
  target-arm: Add AArch64 translation stub
  target-arm: Prepare translation for AArch64 code
  target-arm: Disable 32 bit CPUs in 64 bit linux-user builds
  target-arm: Add new AArch64CPUInfo base class and subclasses
  target-arm: Pass DisasContext* to gen_set_pc_im()
  target-arm: Fix target_ulong/uint32_t confusions
  target-arm: Export cpu_env
  target-arm: Extract the disas struct to a header file
  ...

Message-id: 1378839142-7726-1-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-09-11 14:46:52 -05:00
Peter Maydell
031c44e4de pl110: Clarify comment about PL110 ID on VersatilePB
Clarify a comment about the ID register value presented by
the PL110 variant present on the VersatilePB board (based
on testing what the actual hardware does), to indicate that
this is not an error in our emulation, and to remove an #if-0.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-09-10 19:09:33 +01:00
Gerd Hoffmann
c58c7b959b qxl: fix local renderer
The local spice renderer assumes the primary surface is located at the
start of the "ram" bar.  This used to be a requirement in qxl hardware
revision 1.  In revision 2+ this is relaxed.  Nevertheless guest drivers
continued to use the traditional location, for historical and backward
compatibility reasons.  The qxl kms driver doesn't though as it depends
on qxl revision 4+ anyway.

Result is that local rendering is hosed for recent linux guests, you'll
get pixel garbage with non-spice ui (gtk, sdl, vnc) and when doing
screendumps.  Fix that by doing a proper mapping of the guest-specified
memory location.

https://bugzilla.redhat.com/show_bug.cgi?id=948717

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-09-10 11:14:08 +02:00
Gerd Hoffmann
18b203850a qxl: trace io port name
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-09-10 11:14:08 +02:00
Alex Bligh
bc72ad6754 aio / timers: Switch entire codebase to the new timer API
This is an autogenerated patch using scripts/switch-timer-api.

Switch the entire code base to using the new timer API.

Note this patch may introduce some line length issues.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:14:24 +02:00
Andreas Färber
01774ddbcf tcx: QOM cast cleanup
Introduce a type constant, use QOM casts and rename the parent field.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-29 21:06:05 +02:00
Andreas Färber
5d7a11e438 pl110: QOM'ify pl110, pl110_versatile and pl111
Let pl110_versatile and pl111 inherit from pl110 and use PL110() cast;
set their version index in an instance_init.

Reviewed-by: Hu Tao <hutao@cn.fujitsu.com>
[AF: Set version PL110 explicitly, suggested by Hu Tao; fixed inheritence]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-29 21:06:05 +02:00
Andreas Färber
513960eaae pl110: Rename pl110_state to PL110State
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-29 21:06:05 +02:00
Andreas Färber
54df97bb0c milkymist-vgafb: QOM cast cleanup
Introduce a type constant, use QOM casts and rename the parent field.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-29 21:06:05 +02:00
Andreas Färber
56299135f5 milkymist-tmu2: QOM cast cleanup
Introduce a type constant, use QOM casts and rename the parent field.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-29 21:06:02 +02:00
Andreas Färber
66c2de562f jazz_led: QOM cast cleanup
Introduce a type constant, use QOM casts and rename the parent field.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-29 21:05:59 +02:00
Andreas Färber
0f31aa8625 g364fb: QOM cast cleanup
Introduce a type constant, use QOM casts and rename the parent field and
prepare for QOM realize.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-29 21:05:58 +02:00
Andreas Färber
f27321aa3a exynos4210_fimd: QOM cast cleanup
Introduce a type constant, use QOM casts and rename the parent field.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-29 21:05:58 +02:00
Marcel Apfelbaum
125ee0ed9c devices: Associate devices to their logical category
The category will be used to sort the devices displayed in
the command line help.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Message-id: 1375107465-25767-4-git-send-email-marcel.a@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-29 10:37:09 -05:00
Andreas Färber
af21c74039 display/vmware_vga: QOM parent field cleanup
Replace direct uses of pci_vmsvga_state_s::card with QOM casts and
rename it to parent_obj.

Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23 00:37:34 +02:00
Peter Crosthwaite
39d4598763 display/vmware_vga: QOM casting sweep
Define and use standard QOM cast macro. Remove usages of DO_UPCAST() and
direct -> style casting.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
[AF: Renamed to TYPE_VMWARE_VGA and VMWARE_VGA()]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23 00:37:34 +02:00
Paolo Bonzini
5444e768ee add a header file for atomic operations
We're already using them in several places, but __sync builtins are just
too ugly to type, and do not provide seqcst load/store operations.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:49 +02:00
Paolo Bonzini
3eadad551d hw/d*: pass owner to memory_region_init* functions
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:47 +02:00
Paolo Bonzini
db10ca9057 piolist: add owner argument to initialization functions and pass devices
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:47 +02:00
Paolo Bonzini
42e038fe91 vga: set owner in vga_update_memory_access
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:46 +02:00
Paolo Bonzini
c84b28eeea vga: pass owner to vga_init_io
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:46 +02:00
Paolo Bonzini
8311832773 vga: pass owner to vga_init_vbe
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:46 +02:00
Paolo Bonzini
9eb58a473b vga: pass owner to cirrus_init_common
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:46 +02:00
Paolo Bonzini
270327feb2 vga: pass owner to vga_common_init
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:46 +02:00
Paolo Bonzini
712f0cc777 vga: pass owner to vga_init
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:46 +02:00
Paolo Bonzini
dfde4e6e1a memory: add ref/unref calls
Add ref/unref calls at the following places:

- places where memory regions are stashed by a listener and
  used outside the BQL (including in Xen or KVM).

- memory_region_find callsites

- creation of aliases and containers (only the aliased/contained
  region gets a reference to avoid loops)

- around calls to del_subregion/add_subregion, where the region
  could disappear after the first call

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:45 +02:00
Paolo Bonzini
2c9b15cab1 memory: add owner argument to initialization functions
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:44 +02:00
Jan Kiszka
04e8cd506a vmware-vga: Accept unaligned I/O accesses
Before switching to the memory core dispatcher, we need to make sure
that this pv-device will continue to receive unaligned portio accesses.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:43 +02:00
Anthony Liguori
9fbbf0d1b1 Merge remote-tracking branch 'spice/spice.v71' into staging
# By Gerd Hoffmann (1) and Hans de Goede (1)
# Via Gerd Hoffmann
* spice/spice.v71:
  spice: Add -spice disable-agent-file-transfer cmdline option (rhbz#961850)
  qxl: fix Coverity scan SIGN_EXTENSION error

Message-id: 1372060666-18182-1-git-send-email-kraxel@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-24 14:33:09 -05:00
Gerd Hoffmann
bfc10122fa qxl: fix Coverity scan SIGN_EXTENSION error
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-06-24 08:23:09 +02:00
Anthony PERARD
329f97fc4f qxl: Fix QXLRam initialisation.
The qxl driver expect NULL for QXLRam.memory_configs, but this is never
initialized.

If memory is set to 0xc2c2.., it leads to a spice-critical error when
trying to start qxl.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-06-21 22:52:50 +04:00
Paolo Bonzini
052e87b073 memory: make section size a 128-bit integer
So far, the size of all regions passed to listeners could fit in 64 bits,
because artificial regions (containers and aliases) are eliminated by
the memory core, leaving only device regions which have reasonable sizes

An IOMMU however cannot be eliminated by the memory core, and may have
an artificial size, hence we may need 65 bits to represent its size.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20 16:32:47 +02:00
Andreas Färber
db895a1e6a isa: Use realizefn for ISADevice
Drop ISADeviceClass::init and the resulting no-op initfn and let
children implement their own realizefn. Adapt error handling.
Split off an instance_init where sensible.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-07 12:14:45 +02:00
Anthony Liguori
7087d3df18 Merge remote-tracking branch 'mjt/trivial-patches' into staging
# By Ed Maste (3) and others
# Via Michael Tokarev
* mjt/trivial-patches:
  do not check pointers after dereferencing them
  m25p80: Add Micron n25q032a
  qemu: fix out of tree cross compile
  slirp: cleanup leftovers from misc.h
  migration: Remove duplicate bandwidth_limit set
  docs: Fix typo and update file in migration
  configure: try pkg-config ncurses first
  rtc: remove rtc_set_date
  linux-user: Fix typo in comment
  configure: remove confusing file manipulation
  debugcon: fix compiler warning when open DEBUG_DEBUGCON
  debugcon: make debug message more readable
  debugcon: fix always print "addr=0x0, val=0x0" bug when use DEBUG_DEBUGCON
  Remove unnecessary break statements
  don't run pkg-config for features explicitly disabled

Message-id: 51A9CCFB.1000109@msgid.tls.msk.ru
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-03 08:37:44 -05:00
Mark Cave-Ayland
f10acc8b38 tcx: Fix 24-bit display mode
Commit d08151bf (conversion of tcx to the memory API) broke the 24-bit mode of
the tcx display adapter by accidentally passing in the final address of the
dirty region to memory_region_reset_dirty() instead of its size.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-06-02 16:45:40 +00:00
Stefan Weil
6681fca3fc Remove unnecessary break statements
Fix these warnings from cppcheck:

hw/display/cirrus_vga.c:2603:
hw/sd/sd.c:348:
hw/timer/exynos4210_mct.c:1033:
target-arm/translate.c:9886:
target-s390x/mem_helper.c:518:
target-unicore32/translate.c:1936:
 style: Consecutive return, break, continue, goto or throw statements are unnecessary.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-06-01 14:25:38 +04:00