The patch titled
fbdev: bfin-t350mcqb-fb: fix fbmem allocation with blanking lines
has been added to the -mm tree. Its filename is
fbdev-bfin-t350mcqb-fb-fix-fbmem-allocation-with-blanking-lines.patch
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------------------------------------------------------
Subject: fbdev: bfin-t350mcqb-fb: fix fbmem allocation with blanking lines
From: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
The current allocation does not include the memory required for blanking
lines. So avoid memory corruption when multiple devices are using the DMA
memory near each other.
Signed-off-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
Signed-off-by: Mike Frysinger <vapier@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/bfin-t350mcqb-fb.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff -puN drivers/video/bfin-t350mcqb-fb.c~fbdev-bfin-t350mcqb-fb-fix-fbmem-allocation-with-blanking-lines drivers/video/bfin-t350mcqb-fb.c
--- a/drivers/video/bfin-t350mcqb-fb.c~fbdev-bfin-t350mcqb-fb-fix-fbmem-allocation-with-blanking-lines
+++ a/drivers/video/bfin-t350mcqb-fb.c
@@ -488,9 +488,9 @@ static int __devinit bfin_t350mcqb_probe
fbinfo->fbops = &bfin_t350mcqb_fb_ops;
fbinfo->flags = FBINFO_FLAG_DEFAULT;
- info->fb_buffer =
- dma_alloc_coherent(NULL, fbinfo->fix.smem_len, &info->dma_handle,
- GFP_KERNEL);
+ info->fb_buffer = dma_alloc_coherent(NULL, fbinfo->fix.smem_len +
+ ACTIVE_VIDEO_MEM_OFFSET,
+ &info->dma_handle, GFP_KERNEL);
if (NULL == info->fb_buffer) {
printk(KERN_ERR DRIVER_NAME
@@ -568,8 +568,8 @@ out7:
out6:
fb_dealloc_cmap(&fbinfo->cmap);
out4:
- dma_free_coherent(NULL, fbinfo->fix.smem_len, info->fb_buffer,
- info->dma_handle);
+ dma_free_coherent(NULL, fbinfo->fix.smem_len + ACTIVE_VIDEO_MEM_OFFSET,
+ info->fb_buffer, info->dma_handle);
out3:
framebuffer_release(fbinfo);
out2:
@@ -592,8 +592,9 @@ static int __devexit bfin_t350mcqb_remov
free_irq(info->irq, info);
if (info->fb_buffer != NULL)
- dma_free_coherent(NULL, fbinfo->fix.smem_len, info->fb_buffer,
- info->dma_handle);
+ dma_free_coherent(NULL, fbinfo->fix.smem_len +
+ ACTIVE_VIDEO_MEM_OFFSET, info->fb_buffer,
+ info->dma_handle);
fb_dealloc_cmap(&fbinfo->cmap);
_
Patches currently in -mm which might be from michael.hennerich@xxxxxxxxxx are
fbdev-bfin-t350mcqb-fb-fix-fbmem-allocation-with-blanking-lines.patch
linux-next.patch
backlight-new-driver-for-the-adp8860-backlight-parts.patch
fbdev-bfin-lq035q1-fb-respect-new-ppi-mode-platform-field.patch
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