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>
diff --git a/drivers/video/vt8623fb.c b/drivers/video/vt8623fb.c
index f9b3e3d..4e74d26 100644
--- a/drivers/video/vt8623fb.c
+++ b/drivers/video/vt8623fb.c
@@ -620,13 +620,14 @@
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 */