From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: linux-fbdev@vger.kernel.org
Subject: [PATCH v3 03/29] acornfb: use display information in info not in var for panning
Date: Fri, 08 Jul 2011 11:14:17 +0000 [thread overview]
Message-ID: <1310123683-8064-4-git-send-email-laurent.pinchart@ideasonboard.com> (raw)
We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
drivers/video/acornfb.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/video/acornfb.c b/drivers/video/acornfb.c
index 3bacc12..b303f17 100644
--- a/drivers/video/acornfb.c
+++ b/drivers/video/acornfb.c
@@ -850,9 +850,9 @@ acornfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
u_int y_bottom = var->yoffset;
if (!(var->vmode & FB_VMODE_YWRAP))
- y_bottom += var->yres;
+ y_bottom += info->var.yres;
- if (y_bottom > var->yres_virtual)
+ if (y_bottom > info->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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