drm/msm/mdp5: Add check for kzalloc
authorJiasheng Jiang <jiasheng@iscas.ac.cn>
Tue, 6 Dec 2022 07:48:19 +0000 (15:48 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 10 Mar 2023 08:39:25 +0000 (09:39 +0100)
commit82943a0730e00c14b03e25a4b2a1a9477ae89d7b
tree390130891579436420ce74be53459fd2379323cf
parentc7ee1772e3c36fff8e13daa5ce1ac61426544a33
drm/msm/mdp5: Add check for kzalloc

[ Upstream commit 13fcfcb2a9a4787fe4e49841d728f6f2e9fa6911 ]

As kzalloc may fail and return NULL pointer,
it should be better to check the return value
in order to avoid the NULL pointer dereference.

Fixes: 1cff7440a86e ("drm/msm: Convert to using __drm_atomic_helper_crtc_reset() for reset.")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/514154/
Link: https://lore.kernel.org/r/20221206074819.18134-1-jiasheng@iscas.ac.cn
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c