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(parent: 10784fe) | patch
drm/radeon: fix a possible null pointer dereference
authorGong Yuanjun <ruc_gongyuanjun@163.com>
Tue, 17 May 2022 09:57:00 +0000 (17:57 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 26 May 2022 18:56:31 +0000 (14:56 -0400)
commita2b28708b645c5632dc93669ab06e97874c8244f
tree3342cfaf631482c58b00a4600b60a52aadd550a8tree | snapshot
parent10784fec9cbddad2ca6031b28c1ca1d041444dc5commit | diff
drm/radeon: fix a possible null pointer dereference

In radeon_fp_native_mode(), the return value of drm_mode_duplicate()
is assigned to mode, which will lead to a NULL pointer dereference
on failure of drm_mode_duplicate(). Add a check to avoid npd.

The failure status of drm_cvt_mode() on the other path is checked too.

Signed-off-by: Gong Yuanjun <ruc_gongyuanjun@163.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/radeon/radeon_connectors.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git