From: Richard Genoud <richard.genoud@gmail.com> To: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>, Tomi Valkeinen <tomi.valkeinen@ti.com>, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, Richard Genoud <richard.genoud@gmail.com> Subject: [PATCH 1/2] trivial: atmel_lcdfb: add missing error message Date: Fri, 31 May 2013 16:28:38 +0200 [thread overview] Message-ID: <1370010519-18691-1-git-send-email-richard.genoud@gmail.com> (raw) 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> --- drivers/video/atmel_lcdfb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c index 540909d..6e6491f 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 */ -- 1.7.10.4
WARNING: multiple messages have this Message-ID (diff)
From: Richard Genoud <richard.genoud@gmail.com> To: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>, Tomi Valkeinen <tomi.valkeinen@ti.com>, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, Richard Genoud <richard.genoud@gmail.com> Subject: [PATCH 1/2] trivial: atmel_lcdfb: add missing error message Date: Fri, 31 May 2013 14:28:38 +0000 [thread overview] Message-ID: <1370010519-18691-1-git-send-email-richard.genoud@gmail.com> (raw) 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> --- drivers/video/atmel_lcdfb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c index 540909d..6e6491f 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 */ -- 1.7.10.4
next reply other threads:[~2013-05-31 14:29 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-05-31 14:28 Richard Genoud [this message] 2013-05-31 14:28 ` [PATCH 1/2] trivial: atmel_lcdfb: add missing error message Richard Genoud 2013-05-31 14:28 ` [PATCH 2/2] atmel_lcdfb: blank the backlight on remove Richard Genoud 2013-05-31 14:28 ` Richard Genoud 2013-05-31 15:19 ` Jean-Christophe PLAGNIOL-VILLARD 2013-05-31 15:19 ` Jean-Christophe PLAGNIOL-VILLARD 2013-05-31 15:41 ` Richard Genoud 2013-05-31 15:41 ` Richard Genoud 2013-05-31 15:49 ` [PATCHv2 " Richard Genoud 2013-05-31 15:49 ` Richard Genoud
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