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drm/vkms: Adjust vkms_state->active_planes allocation type

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In preparation for making the kmalloc family of allocators type aware,
we need to make sure that the returned type from the allocation matches
the type of the variable being assigned. (Before, the allocator would
always return "void *", which can be implicitly cast to any pointer type.)

The assigned type is "struct vkms_plane_state **", but the returned type
will be "struct drm_plane **". These are the same size (pointer size), but
the types don't match. Adjust the allocation type to match the assignment.

Signed-off-by: Kees Cook <kees@kernel.org>
Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com>
Fixes: 8b18658736 ("drm/vkms: totally reworked crc data tracking")
Link: https://lore.kernel.org/r/20250426061431.work.304-kees@kernel.org
Signed-off-by: Louis Chauvet <contact@louischauvet.fr>
This commit is contained in:
Kees Cook
2025-04-25 23:14:32 -07:00
committed by Louis Chauvet
parent 6a5ca33b88
commit 258aebf100
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/vkms/vkms_crtc.c
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@@ -194,7 +194,7 @@ static int vkms_crtc_atomic_check(struct drm_crtc *crtc,
i++;
}
vkms_state->active_planes = kcalloc(i, sizeof(plane), GFP_KERNEL);
vkms_state->active_planes = kcalloc(i, sizeof(*vkms_state->active_planes), GFP_KERNEL);
if (!vkms_state->active_planes)
return -ENOMEM;
vkms_state->num_active_planes = i;