qemu/hw/sd
Peter Maydell 0719e71e52 sd.c: Handle NULL block backend in sd_get_inserted()
The sd.c SD card emulation code can be in a state where the
SDState BlockBackend pointer is NULL; this is treated as
"card not present". Add a missing check to sd_get_inserted()
so that we don't segfault in this situation.

(This could be provoked by the guest writing to the SDHCI
register to do a reset on a xilinx-zynq-a9 board; it will
also happen at startup when sdhci implements its DeviceClass
reset method.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 1456493044-10025-2-git-send-email-peter.maydell@linaro.org
2016-03-04 11:30:17 +00:00
..
core.c hw/sd: Add QOM bus which SD cards plug in to 2016-02-18 14:26:33 +00:00
Makefile.objs hw/sd: Add QOM bus which SD cards plug in to 2016-02-18 14:26:33 +00:00
milkymist-memcard.c lm32: Clean up includes 2016-01-29 15:07:22 +00:00
omap_mmc.c arm devices: Clean up includes 2016-01-29 15:07:25 +00:00
pl181.c arm: Clean up includes 2016-01-29 15:07:23 +00:00
pxa2xx_mmci.c hw/sd/pxa2xx_mmci: Add reset function 2016-02-18 14:50:50 +00:00
sd.c sd.c: Handle NULL block backend in sd_get_inserted() 2016-03-04 11:30:17 +00:00
sdhci-internal.h sdhci: Split sdhci.h for public and internal device usage 2015-10-29 17:59:27 +00:00
sdhci.c sdhci: add quirk property for card insert interrupt status on Raspberry Pi 2016-02-26 15:09:42 +00:00
ssi-sd.c hw: Clean up includes 2016-01-29 15:07:25 +00:00