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| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2012-05-10 11:15:14 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2012-05-11 14:44:27 +0300 |
| commit | 3a028bb99d1f1e5c444060a176cbd4bf93530df3 (patch) | |
| tree | 198ca5954a9dd59e005c871374fffac355f7e6ab /drivers/video/omap2/omapfb/omapfb-main.c | |
| parent | b3e68d306519cc96ff5ad2957d133997f91bb53e (diff) | |
| download | lwn-3a028bb99d1f1e5c444060a176cbd4bf93530df3.tar.gz lwn-3a028bb99d1f1e5c444060a176cbd4bf93530df3.zip | |
OMAPFB: fix parsing of vram parameter
omapfb_parse_vram_param()'s check for end pointer returned from
simple_strtoul() is wrong, causing the code to bug if the second or
later vram parameters are non-parseable, for example
"omapfb.vram=0:2M,:5M".
However, even in that case the code will most likely bail out with
-EINVAL in the following checks, so the bug is probably not a fatal one.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: Hein Tibosch <hein_tibosch@yahoo.es>
Diffstat (limited to 'drivers/video/omap2/omapfb/omapfb-main.c')
| -rw-r--r-- | drivers/video/omap2/omapfb/omapfb-main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c index b00db4068d21..7f02e7f90d63 100644 --- a/drivers/video/omap2/omapfb/omapfb-main.c +++ b/drivers/video/omap2/omapfb/omapfb-main.c @@ -1502,7 +1502,7 @@ static int omapfb_parse_vram_param(const char *param, int max_entries, fbnum = simple_strtoul(p, &p, 10); - if (p == param) + if (p == start) return -EINVAL; if (*p != ':') |