[PATCH] video: sh7760fb: Fix a possible memory leak in sh7760fb_alloc_mem()
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STALE696d
From: Zhen Lei <hidden>
Date: 2024-10-26 04:16:35
Also in:
dri-devel
Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
When information such as info->screen_base is not ready, calling
sh7760fb_free_mem() does not release memory correctly. Call
dma_free_coherent() instead.
Fixes: 4a25e41831ee ("video: sh7760fb: SH7760/SH7763 LCDC framebuffer driver")
Signed-off-by: Zhen Lei <redacted>
---
drivers/video/fbdev/sh7760fb.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/video/fbdev/sh7760fb.c b/drivers/video/fbdev/sh7760fb.c
index 3d2a27fefc874a7..130adef2e468697 100644
--- a/drivers/video/fbdev/sh7760fb.c
+++ b/drivers/video/fbdev/sh7760fb.c@@ -409,12 +409,11 @@ static int sh7760fb_alloc_mem(struct fb_info *info) vram = PAGE_SIZE; fbmem = dma_alloc_coherent(info->device, vram, &par->fbdma, GFP_KERNEL); - if (!fbmem) return -ENOMEM; if ((par->fbdma & SH7760FB_DMA_MASK) != SH7760FB_DMA_MASK) { - sh7760fb_free_mem(info); + dma_free_coherent(info->device, vram, fbmem, par->fbdma); dev_err(info->device, "kernel gave me memory at 0x%08lx, which is" "unusable for the LCDC\n", (unsigned long)par->fbdma); return -ENOMEM;
--
2.34.1