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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2011-05-25 11:34:52 +0200 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2011-08-19 10:36:20 +0200 |
| commit | 10a6c1de2ca2761f87c9bd62ab882577a80995f1 (patch) | |
| tree | e3b1ecc0abad3a0cb82a6fe911132bb7d783a7dc | |
| parent | 8f0246d6287fbb37c05b7983ff61c7f57ad86a92 (diff) | |
| download | linux-3.10-10a6c1de2ca2761f87c9bd62ab882577a80995f1.tar.gz linux-3.10-10a6c1de2ca2761f87c9bd62ab882577a80995f1.tar.bz2 linux-3.10-10a6c1de2ca2761f87c9bd62ab882577a80995f1.zip | |
vt8623fb: 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>
| -rw-r--r-- | drivers/video/vt8623fb.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/video/vt8623fb.c b/drivers/video/vt8623fb.c index f9b3e3dc242..4e74d262cf3 100644 --- a/drivers/video/vt8623fb.c +++ b/drivers/video/vt8623fb.c @@ -620,13 +620,14 @@ static int vt8623fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *i unsigned int offset; /* Calculate the offset */ - if (var->bits_per_pixel == 0) { - offset = (var->yoffset / 16) * var->xres_virtual + var->xoffset; + if (info->var.bits_per_pixel == 0) { + offset = (var->yoffset / 16) * info->var.xres_virtual + + var->xoffset; offset = offset >> 3; } else { offset = (var->yoffset * info->fix.line_length) + - (var->xoffset * var->bits_per_pixel / 8); - offset = offset >> ((var->bits_per_pixel == 4) ? 2 : 1); + (var->xoffset * info->var.bits_per_pixel / 8); + offset = offset >> ((info->var.bits_per_pixel == 4) ? 2 : 1); } /* Set the offset */ |