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>
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@ -461,8 +461,11 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var,
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if (info->fix.smem_len) {
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if (info->fix.smem_len) {
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unsigned int smem_len = (var->xres_virtual * var->yres_virtual
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unsigned int smem_len = (var->xres_virtual * var->yres_virtual
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* ((var->bits_per_pixel + 7) / 8));
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* ((var->bits_per_pixel + 7) / 8));
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if (smem_len > info->fix.smem_len)
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if (smem_len > info->fix.smem_len) {
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dev_err(dev, "Frame buffer is too small (%u) for screen size (need at least %u)\n",
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info->fix.smem_len, smem_len);
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return -EINVAL;
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return -EINVAL;
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}
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}
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}
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/* Saturate vertical and horizontal timings at maximum values */
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/* Saturate vertical and horizontal timings at maximum values */
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