diff options
| author | Sandor Yu <R01008@freescale.com> | 2014-04-03 15:46:59 +0800 |
|---|---|---|
| committer | Sandor Yu <R01008@freescale.com> | 2014-04-03 15:58:29 +0800 |
| commit | a7ff04798634d5323d865232b71cad6aa252cd1b (patch) | |
| tree | ba7a412d4ed0c1c869a843c8c8506f378e72fc5f | |
| parent | a8a6771e74f06698fa0f8c5c06f23e5787f142a2 (diff) | |
ENGR00306832 mxsfb: xres_virtual should not larger than xres
eLCDIF did not support stride buffer, check the xres_virtual
in function mxfb_check_var, return false
if the value larger than xres.
Signed-off-by: Sandor Yu <R01008@freescale.com>
| -rw-r--r-- | drivers/video/mxsfb.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c index 7b0304af8665..7636ea31737a 100644 --- a/drivers/video/mxsfb.c +++ b/drivers/video/mxsfb.c @@ -367,6 +367,11 @@ static int mxsfb_check_var(struct fb_var_screeninfo *var, if (var->yres < MIN_YRES) var->yres = MIN_YRES; + if (var->xres_virtual > var->xres) { + dev_dbg(fb_info->device, "stride not supported\n"); + return -EINVAL; + } + if (var->xres_virtual < var->xres) var->xres_virtual = var->xres; if (var->yres_virtual < var->yres) |