hw/arm/orangepi: check for potential NULL pointer when calling blk_is_available
The Orange Pi PC initialization function needs to verify that the SD card
block backend is usable before calling the Boot ROM setup routine. When
calling blk_is_available() the input parameter should not be NULL.
This commit ensures that blk_is_available is only called with non-NULL input.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20200322205439.15231-1-nieklinnenbank@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
diff --git a/hw/arm/orangepi.c b/hw/arm/orangepi.c
index 181f5ba..a9f64c5 100644
--- a/hw/arm/orangepi.c
+++ b/hw/arm/orangepi.c
@@ -104,7 +104,7 @@
machine->ram);
/* Load target kernel or start using BootROM */
- if (!machine->kernel_filename && blk_is_available(blk)) {
+ if (!machine->kernel_filename && blk && blk_is_available(blk)) {
/* Use Boot ROM to copy data from SD card to SRAM */
allwinner_h3_bootrom_setup(h3, blk);
}
