diff mbox series

[v2,1/2] drm/vkms: check plane_composer->map[0] before using it

Message ID 20220415111300.61013-2-tales.aparecida@gmail.com (mailing list archive)
State New, archived
Headers show
Series drm/vkms: check plane_composer->map[0] before using it | expand

Commit Message

Tales April 15, 2022, 11:12 a.m. UTC
Fix a copypasta error. The caller of compose_plane() already checks
primary_composer->map. In contrast, plane_composer->map is never
verified here before handling.

Fixes: 7938f4218168 ("dma-buf-map: Rename to iosys-map")
Reviewed-by: André Almeida <andrealmeid@riseup.net>
Signed-off-by: Tales Lelo da Aparecida <tales.aparecida@gmail.com>
---
v2: detail the commit message with more information

 drivers/gpu/drm/vkms/vkms_composer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Melissa Wen June 13, 2022, 9:33 a.m. UTC | #1
On 04/15, Tales Lelo da Aparecida wrote:
> Fix a copypasta error. The caller of compose_plane() already checks
> primary_composer->map. In contrast, plane_composer->map is never
> verified here before handling.
> 
> Fixes: 7938f4218168 ("dma-buf-map: Rename to iosys-map")
> Reviewed-by: André Almeida <andrealmeid@riseup.net>
> Signed-off-by: Tales Lelo da Aparecida <tales.aparecida@gmail.com>
> ---
> v2: detail the commit message with more information
> 
>  drivers/gpu/drm/vkms/vkms_composer.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c
> index c6a1036bf2ea..b47ac170108c 100644
> --- a/drivers/gpu/drm/vkms/vkms_composer.c
> +++ b/drivers/gpu/drm/vkms/vkms_composer.c
> @@ -157,7 +157,7 @@ static void compose_plane(struct vkms_composer *primary_composer,
>  	void *vaddr;
>  	void (*pixel_blend)(const u8 *p_src, u8 *p_dst);
>  
> -	if (WARN_ON(iosys_map_is_null(&primary_composer->map[0])))
> +	if (WARN_ON(iosys_map_is_null(&plane_composer->map[0])))
>  		return;

I cherry-picked this one and applied to drm-misc-next.

Thanks,

Melissa

>  
>  	vaddr = plane_composer->map[0].vaddr;
> -- 
> 2.35.1
>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c
index c6a1036bf2ea..b47ac170108c 100644
--- a/drivers/gpu/drm/vkms/vkms_composer.c
+++ b/drivers/gpu/drm/vkms/vkms_composer.c
@@ -157,7 +157,7 @@  static void compose_plane(struct vkms_composer *primary_composer,
 	void *vaddr;
 	void (*pixel_blend)(const u8 *p_src, u8 *p_dst);
 
-	if (WARN_ON(iosys_map_is_null(&primary_composer->map[0])))
+	if (WARN_ON(iosys_map_is_null(&plane_composer->map[0])))
 		return;
 
 	vaddr = plane_composer->map[0].vaddr;