From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: linux-fbdev@vger.kernel.org
Subject: [PATCH v3 02/29] acornfb: Dont BUG() on invalid pan parameters
Date: Fri, 08 Jul 2011 11:14:16 +0000 [thread overview]
Message-ID: <1310123683-8064-3-git-send-email-laurent.pinchart@ideasonboard.com> (raw)
The driver currently BUG()s if the pan parameters passed directly from
userspace are invalid. Return -EINVAL instead.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
drivers/video/acornfb.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/video/acornfb.c b/drivers/video/acornfb.c
index 6183a57..3bacc12 100644
--- a/drivers/video/acornfb.c
+++ b/drivers/video/acornfb.c
@@ -852,7 +852,8 @@ acornfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
if (!(var->vmode & FB_VMODE_YWRAP))
y_bottom += var->yres;
- BUG_ON(y_bottom > var->yres_virtual);
+ if (y_bottom > var->yres_virtual)
+ return -EINVAL;
acornfb_update_dma(info, var);
--
1.7.3.4
reply other threads:[~2011-07-08 11:14 UTC|newest]
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