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trivial: atmel_lcdfb: add missing error message

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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>
This commit is contained in:
Richard Genoud 2013-05-31 14:28:38 +00:00 committed by Jean-Christophe PLAGNIOL-VILLARD
parent 2436e8aa8a
commit 65ac057bce
1 changed files with 4 additions and 1 deletions
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5
drivers/video/atmel_lcdfb.c
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@ -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 */