This is a note to let you know that I've just added the patch titled
drm/amdgpu: fix double free err_addr pointer warnings
to the 6.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amdgpu-fix-double-free-err_addr-pointer-warnings.patch
and it can be found in the queue-6.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 7f3c2f3871f844946d81e83c04d652ad8af0e400
Author: Bob Zhou <bob.zhou@xxxxxxx>
Date: Tue Apr 23 13:32:39 2024 +0800
drm/amdgpu: fix double free err_addr pointer warnings
[ Upstream commit 506c245f3f1cd989cb89811a7f06e04ff8813a0d ]
In amdgpu_umc_bad_page_polling_timeout, the amdgpu_umc_handle_bad_pages
will be run many times so that double free err_addr in some special case.
So set the err_addr to NULL to avoid the warnings.
Signed-off-by: Bob Zhou <bob.zhou@xxxxxxx>
Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c
index 20436f81856ad..6f7451e3ee87e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c
@@ -170,6 +170,7 @@ static void amdgpu_umc_handle_bad_pages(struct amdgpu_device *adev,
}
kfree(err_data->err_addr);
+ err_data->err_addr = NULL;
mutex_unlock(&con->page_retirement_lock);
}
