[PATCH 20/29] s3c-fb: use display information in info not in var for panning

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>
Cc: Ondrej Zary <redacted>
---
 drivers/video/s3fb.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/video/s3fb.c b/drivers/video/s3fb.c
index c4482f2..a625e5a 100644
--- a/drivers/video/s3fb.c
+++ b/drivers/video/s3fb.c

@@ -894,12 +894,13 @@ static int s3fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
 	unsigned int offset;
 
 	/* Calculate the offset */
-	if (var->bits_per_pixel = 0) {
-		offset = (var->yoffset / 16) * (var->xres_virtual / 2) + (var->xoffset / 2);
+	if (info->var.bits_per_pixel = 0) {
+		offset = (var->yoffset / 16) * (info->var.xres_virtual / 2)
+		       + (var->xoffset / 2);
 		offset = offset >> 2;
 	} else {
 		offset = (var->yoffset * info->fix.line_length) +
-			 (var->xoffset * var->bits_per_pixel / 8);
+			 (var->xoffset * info->var.bits_per_pixel / 8);
 		offset = offset >> 2;
 	}
 

-- 
1.7.3.4

------- Original Message -------
Sender : Laurent Pinchart[off-list ref] 
Date   : May 26, 2011 07:58 (GMT+09:00)
Title  : [PATCH 20/29] s3c-fb: use display information in info not in var for
 panning

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>
Cc: Ondrej Zary <redacted>
---
 drivers/video/s3fb.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

The patch title is misleading; this is not the s3c-fb driver but the s3fb driver.

Jingoo Han
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