[PATCH v3] drm/gud: Use kmalloc_array() instead of kmalloc()
From: Mehdi Ben Hadj Khelifa
Date: Tue Oct 07 2025 - 04:33:21 EST
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 <mehdi.benhadjkhelifa@xxxxxxxxx>
---
Changelog:
Changes since v2:
-Reversed width and height in parameter order.
Link:https://lore.kernel.org/all/20250923085144.22582-1-mehdi.benhadjkhelifa@xxxxxxxxx/
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-mehdi.benhadjkhelifa@xxxxxxxxx/
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;
--
2.51.0