From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: linux-fbdev@vger.kernel.org
Subject: [PATCH v2 12/29] imsttfb: use display information in info not in var for panning
Date: Tue, 14 Jun 2011 09:24:50 +0000 [thread overview]
Message-ID: <1308043507-11083-13-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/imsttfb.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/video/imsttfb.c b/drivers/video/imsttfb.c
index efb2c10..8149356 100644
--- a/drivers/video/imsttfb.c
+++ b/drivers/video/imsttfb.c
@@ -749,7 +749,7 @@ set_offset (struct fb_var_screeninfo *var, struct fb_info *info)
{
struct imstt_par *par = info->par;
__u32 off = var->yoffset * (info->fix.line_length >> 3)
- + ((var->xoffset * (var->bits_per_pixel >> 3)) >> 3);
+ + ((var->xoffset * (info->var.bits_per_pixel >> 3)) >> 3);
write_reg_le32(par->dc_regs, SSR, off);
}
--
1.7.3.4
reply other threads:[~2011-06-14 9:24 UTC|newest]
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