drm/msm/a6xx: move preempt_prepare_postamble after error check

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[ Upstream commit ef3b04091f ]

Move the call to preempt_prepare_postamble() after verifying that
preempt_postamble_ptr is valid. If preempt_postamble_ptr is NULL,
dereferencing it in preempt_prepare_postamble() would lead to a crash.

This change avoids calling the preparation function when the
postamble allocation has failed, preventing potential NULL pointer
dereference and ensuring proper error handling.

Fixes: 50117cad0c ("drm/msm/a6xx: Use posamble to reset counters on preemption")
Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Patchwork: https://patchwork.freedesktop.org/patch/687659/
Message-ID: <20251113082839.3821867-1-alok.a.tiwari@oracle.com>
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Alok Tiwari 2025-11-13 00:28:31 -08:00 • committed by Greg Kroah-Hartman

parent 19648135e9

commit 2c46497eb1

1 changed files with 2 additions and 2 deletions

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drivers/gpu/drm/msm/adreno/a6xx_preempt.c

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