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| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2015-01-15 14:47:19 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2015-08-20 10:20:11 +0300 |
| commit | 6080a89357cc46f3450839a84af75c3d18f57772 (patch) | |
| tree | 9501a62b245f3dac2bd386d1e6e75b4879231254 /include/linux/fb.h | |
| parent | 2c6625cd545bdd66acff14f3394865d43920a5c7 (diff) | |
| download | linux-6080a89357cc46f3450839a84af75c3d18f57772.tar.xz | |
fbdev: fix cea_modes array size
CEA defines 64 modes, indexed from 1 to 64. modedb has cea_modes arrays,
which contains 64 entries. However, the code uses the CEA indices
directly, i.e. the first mode is at cea_modes[1]. This means the array
is one too short.
This does not cause references to uninitialized memory as the code in
fbmon only allows indexes up to 63, and the cea_modes does not contain
an entry for the mode 64 so it could not be used in any case.
However, the code contains a check 'if (idx > ARRAY_SIZE(cea_modes)',
and while that check is a no-op as at that point idx cannot be >= 63, it
upsets static checkers.
Fix this by increasing the cea_array size to be 65, and change the code
to allow mode 64.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Diffstat (limited to 'include/linux/fb.h')
| -rw-r--r-- | include/linux/fb.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/fb.h b/include/linux/fb.h index 043f3283b71c..bc9afa74ee11 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -788,7 +788,7 @@ struct dmt_videomode { extern const char *fb_mode_option; extern const struct fb_videomode vesa_modes[]; -extern const struct fb_videomode cea_modes[64]; +extern const struct fb_videomode cea_modes[65]; extern const struct dmt_videomode dmt_modes[]; struct fb_modelist { |