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| author |   Wang YanQing <udknight@gmail.com> | 2013-03-30 04:53:00 +0200 |
|---|---|---|
| committer |   Tomi Valkeinen <tomi.valkeinen@ti.com> | 2013-04-02 13:33:55 +0300 |
| commit | 090da752cdd6f0786eee68c8dea8db7c8abd3798 (patch) | |
| tree | 5b81a185bc34326ef9e120ca96fe271c3e589bba /drivers/video/uvesafb.c | |
| parent | fbmon: use VESA_DMT_VSYNC_HIGH to fix typo (diff) | |
| download | linux-dev-090da752cdd6f0786eee68c8dea8db7c8abd3798.tar.xz linux-dev-090da752cdd6f0786eee68c8dea8db7c8abd3798.zip | |
video:uvesafb: Fix dereference NULL pointer code path
platform_device_alloc could failed and return NULL,
we should check this before call platform_device_put.
Signed-off-by: Wang YanQing <udknight@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/video/uvesafb.c')
| -rw-r--r-- | drivers/video/uvesafb.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c index b75db0186488..d4284458377e 100644 --- a/drivers/video/uvesafb.c +++ b/drivers/video/uvesafb.c @@ -1973,7 +1973,8 @@ static int uvesafb_init(void) err = -ENOMEM; if (err) { - platform_device_put(uvesafb_device); + if (uvesafb_device) + platform_device_put(uvesafb_device); platform_driver_unregister(&uvesafb_driver); cn_del_callback(&uvesafb_cn_id); return err; |