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authorYork Sun <yorksun@freescale.com>2008-08-15 00:40:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-15 08:35:43 -0700
commitfdfaa4833f984c6f8d44afb1fed6c0c775e6e67b (patch)
tree477d1d2721b1cefb405052ed1dbc814be4dcdb3d /drivers/video/fsl-diu-fb.c
parentae5591e3f4754478b397a4e09ebd7cf4774ef88e (diff)
freescale DIU: bug fix: add sanity check for AOI position
AOI position cannot be negative. Signed-off-by: York Sun <yorksun@freescale.com> Cc: Kumar Gala <galak@gate.crashing.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/fsl-diu-fb.c')
-rw-r--r--drivers/video/fsl-diu-fb.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c
index d9d24938da9e..fb51197d1c98 100644
--- a/drivers/video/fsl-diu-fb.c
+++ b/drivers/video/fsl-diu-fb.c
@@ -479,6 +479,10 @@ static void adjust_aoi_size_position(struct fb_var_screeninfo *var,
base_plane_width = machine_data->fsl_diu_info[0]->var.xres;
base_plane_height = machine_data->fsl_diu_info[0]->var.yres;
+ if (mfbi->x_aoi_d < 0)
+ mfbi->x_aoi_d = 0;
+ if (mfbi->y_aoi_d < 0)
+ mfbi->y_aoi_d = 0;
switch (index) {
case 0:
if (mfbi->x_aoi_d != 0)