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authorRichard Genoud <richard.genoud@gmail.com>2013-05-31 14:28:38 +0000
committerJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2013-06-01 03:18:30 +0800
commit65ac057bce426b4abdf42384c4e09e40a634df32 (patch)
treeae30cae5f0489e12c8720d3c5e8a8e1e60346059 /drivers
parent2436e8aa8abef2536dc3bfb554f8dcb3a8b07560 (diff)
downloadlinux-65ac057bce426b4abdf42384c4e09e40a634df32.tar.gz
trivial: atmel_lcdfb: add missing error message
When a too small framebuffer is given, the atmel_lcdfb_check_var silently fails. Adding an error message will save some head scratching. Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/video/atmel_lcdfb.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index 540909de624..6e6491fb83b 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -461,8 +461,11 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var,
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)
+ if (smem_len > info->fix.smem_len) {
+ dev_err(dev, "Frame buffer is too small (%u) for screen size (need at least %u)\n",
+ info->fix.smem_len, smem_len);
return -EINVAL;
+ }
}
/* Saturate vertical and horizontal timings at maximum values */