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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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a26ac6c1be
In isif_probe(), there is a while loop to get the ISIF base address and linearization table0 and table1 address. In the loop body, the function platform_get_resource() is called to get the resource. If platform_get_resource() returns NULL, the loop is terminated and the execution goes to 'fail_nobase_res'. Suppose the loop is terminated at the first iteration because platform_get_resource() returns NULL and the execution goes to 'fail_nobase_res'. Given that there is another while loop at 'fail_nobase_res' and i equals to 0, one iteration of the second while loop will be executed. However, the second while loop does not check the return value of platform_get_resource(). This can cause a NULL pointer dereference bug if the return value is a NULL pointer. This patch avoids the above issue by adding a check in the second while loop after the call to platform_get_resource(). Signed-off-by: Wenwen Wang <wang6495@umn.edu> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> |
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| .. | ||
| ccdc_hw_device.h | ||
| dm355_ccdc_regs.h | ||
| dm355_ccdc.c | ||
| dm644x_ccdc_regs.h | ||
| dm644x_ccdc.c | ||
| isif_regs.h | ||
| isif.c | ||
| Kconfig | ||
| Makefile | ||
| vpbe_display.c | ||
| vpbe_osd_regs.h | ||
| vpbe_osd.c | ||
| vpbe_venc_regs.h | ||
| vpbe_venc.c | ||
| vpbe.c | ||
| vpfe_capture.c | ||
| vpif_capture.c | ||
| vpif_capture.h | ||
| vpif_display.c | ||
| vpif_display.h | ||
| vpif.c | ||
| vpif.h | ||
| vpss.c | ||