On 10/7/25 9:58 AM, Thomas Zimmermann wrote:
Hi

Am 07.10.25 um 10:32 schrieb Mehdi Ben Hadj Khelifa:
Replace kmalloc with kmalloc array in drm/gud/gud_pipe.c since the
calculation inside kmalloc is dynamic 'width * height'

Signed-off-by: Mehdi Ben Hadj Khelifa <[email protected]>

Acked-by: Thomas Zimmermann <[email protected]>

As Ruben already acked the previous patch, you should add such acks to any later patches. But no need to resend a new iteration now. I'll add Ruben's a-b when I merge the patch.

ack,I forgot about that. Thanks for the heads-up.We'll do next time!

Best regards
Thomas

Best Regards,
Mehdi Ben Hadj Khelifa

---
Changelog:

Changes since v2:
-Reversed width and height in parameter order.
Link:https://lore.kernel.org/all/20250923085144.22582-1- [email protected]/
Changes since v1:
- Use of width as element count and height as size of element to
eliminate the mentionned calculation and overflow issues.
Link:https://lore.kernel.org/all/20250922174416.226203-1- [email protected]/
  drivers/gpu/drm/gud/gud_pipe.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/gud/gud_pipe.c b/drivers/gpu/drm/gud/ gud_pipe.c
index 8d548d08f127..c32a798ccadf 100644
--- a/drivers/gpu/drm/gud/gud_pipe.c
+++ b/drivers/gpu/drm/gud/gud_pipe.c
@@ -70,7 +70,7 @@ static size_t gud_xrgb8888_to_r124(u8 *dst, const struct drm_format_info *format
      height = drm_rect_height(rect);
      len = drm_format_info_min_pitch(format, 0, width) * height;
-    buf = kmalloc(width * height, GFP_KERNEL);
+    buf = kmalloc_array(height, width, GFP_KERNEL);
      if (!buf)
          return 0;


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