9561fda8d9
Some object_property_add_link() callers expect property deletion to unref the link property object. Other callers expect to manage the refcount themselves. The former are currently broken and therefore leak the link property object. This patch adds a flags argument to object_property_add_link() so the caller can specify which refcount behavior they require. The new OBJ_PROP_LINK_UNREF_ON_RELEASE flag causes the link pointer to be unreferenced when the property is deleted. This fixes refcount leaks in qdev.c, xilinx_axidma.c, xilinx_axienet.c, s390-virtio-bus.c, virtio-pci.c, virtio-rng.c, and ui/console.c. Rationale for refcount behavior: * hw/core/qdev.c - bus children are explicitly unreferenced, don't interfere - parent_bus is essentially a read-only property that doesn't hold a refcount, don't unref - hotplug_handler is leaked, do unref * hw/dma/xilinx_axidma.c - rx stream "dma" links are set using set_link, therefore they need unref - tx streams are set using set_link, therefore they need unref * hw/net/xilinx_axienet.c - same reasoning as hw/dma/xilinx_axidma.c * hw/pcmcia/pxa2xx.c - pxa2xx bypasses set_link and therefore does not use refcounts * hw/s390x/s390-virtio-bus.c * hw/virtio/virtio-pci.c * hw/virtio/virtio-rng.c * ui/console.c - set_link is used and there is no explicit unref, do unref Cc: Peter Crosthwaite <peter.crosthwaite@petalogix.com> Cc: Alexander Graf <agraf@suse.de> Cc: Anthony Liguori <aliguori@amazon.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de> |
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.. | ||
cocoa.m | ||
console.c | ||
curses_keys.h | ||
curses.c | ||
cursor_hidden.xpm | ||
cursor_left_ptr.xpm | ||
cursor.c | ||
d3des.c | ||
d3des.h | ||
gtk.c | ||
input-legacy.c | ||
input.c | ||
keymaps.c | ||
keymaps.h | ||
Makefile.objs | ||
qemu-pixman.c | ||
qemu-x509.h | ||
sdl2-keymap.h | ||
sdl2.c | ||
sdl_keysym.h | ||
sdl_zoom_template.h | ||
sdl_zoom.c | ||
sdl_zoom.h | ||
sdl.c | ||
spice-core.c | ||
spice-display.c | ||
spice-input.c | ||
vgafont.h | ||
vnc_keysym.h | ||
vnc-auth-sasl.c | ||
vnc-auth-sasl.h | ||
vnc-auth-vencrypt.c | ||
vnc-auth-vencrypt.h | ||
vnc-enc-hextile-template.h | ||
vnc-enc-hextile.c | ||
vnc-enc-tight.c | ||
vnc-enc-tight.h | ||
vnc-enc-zlib.c | ||
vnc-enc-zrle-template.c | ||
vnc-enc-zrle.c | ||
vnc-enc-zrle.h | ||
vnc-enc-zywrle-template.c | ||
vnc-enc-zywrle.h | ||
vnc-jobs.c | ||
vnc-jobs.h | ||
vnc-palette.c | ||
vnc-palette.h | ||
vnc-tls.c | ||
vnc-tls.h | ||
vnc-ws.c | ||
vnc-ws.h | ||
vnc.c | ||
vnc.h | ||
x_keymap.c | ||
x_keymap.h |