The patch titled
atmel_lcdfb: disallow setting larger resolution than the framebuffer memory can handle
has been added to the -mm tree. Its filename is
atmel_lcdfb-disallow-setting-larger-resolution-than-the-framebuffer-memory-can-handle.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: atmel_lcdfb: disallow setting larger resolution than the framebuffer memory can handle
From: Stanislaw Gruszka <stf_xl@xxxxx>
Signed-off-by: Stanislaw Gruszka <stf_xl@xxxxx>
Cc: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
Cc: Krzysztof Helt <krzysztof.h1@xxxxx>
Cc: Haavard Skinnemoen <hskinnemoen@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/atmel_lcdfb.c | 7 +++++++
1 file changed, 7 insertions(+)
diff -puN drivers/video/atmel_lcdfb.c~atmel_lcdfb-disallow-setting-larger-resolution-than-the-framebuffer-memory-can-handle drivers/video/atmel_lcdfb.c
--- a/drivers/video/atmel_lcdfb.c~atmel_lcdfb-disallow-setting-larger-resolution-than-the-framebuffer-memory-can-handle
+++ a/drivers/video/atmel_lcdfb.c
@@ -342,6 +342,13 @@ static int atmel_lcdfb_check_var(struct
var->transp.offset = var->transp.length = 0;
var->xoffset = var->yoffset = 0;
+ if (info->fix.smem_len) {
+ unsigned int smem_len = (var->xres_virtual * var->yres_virtual
+ * ((var->bits_per_pixel + 7) / 8));
+ if (smem_len > info->fix.smem_len)
+ return -EINVAL;
+ }
+
/* Saturate vertical and horizontal timings at maximum values */
var->vsync_len = min_t(u32, var->vsync_len,
(ATMEL_LCDC_VPW >> ATMEL_LCDC_VPW_OFFSET) + 1);
_
Patches currently in -mm which might be from stf_xl@xxxxx are
atmel_lcdfb-fix-oops-in-rmmod-when-framebuffer-fails-to-register.patch
atmel_lcdfb-disallow-setting-larger-resolution-than-the-framebuffer-memory-can-handle.patch
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