From: Richard Genoud Date: Fri, 31 May 2013 14:28:38 +0000 (+0000) Subject: trivial: atmel_lcdfb: add missing error message X-Git-Tag: firefly_0821_release~3680^2~381^2~1 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=65ac057bce426b4abdf42384c4e09e40a634df32;p=firefly-linux-kernel-4.4.55.git 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 Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD --- diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c index 540909de6247..6e6491fb83b7 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 */