diff options
| author | Jon Mayo <jmayo@nvidia.com> | 2013-01-17 09:21:41 -0800 |
|---|---|---|
| committer | Riham Haidar <rhaidar@nvidia.com> | 2014-03-13 14:15:07 -0700 |
| commit | 5feec650d32615e83eed55cbca0ab531a378eab1 (patch) | |
| tree | e5b02e561db04d1424bb68ee689a3b4e2095d3ea | |
| parent | fd871a6d58b0ffe9e76557e6deb82fcc398f68fc (diff) | |
video: tegra: avoid null deref on nvdps read
When reading nvdps sysfs file, check mode to avoid a null dereference.
Bug 1454609
Change-Id: I27c125c887e7653d953cf15b4d96d889ef36652f
Signed-off-by: Jon Mayo <jmayo@nvidia.com>
Reviewed-on: http://git-master/r/192099
(cherry picked from commit fc2ebcb8459543814b5a0180e5fc2f222b3dc93b)
Reviewed-on: http://git-master/r/381409
Reviewed-by: Liangcai Li <liangcail@nvidia.com>
Tested-by: Liangcai Li <liangcail@nvidia.com>
GVS: Gerrit_Virtual_Submit
| -rw-r--r-- | drivers/video/tegra/fb.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/video/tegra/fb.c b/drivers/video/tegra/fb.c index 82a719fc1b89..5b8eca3a0321 100644 --- a/drivers/video/tegra/fb.c +++ b/drivers/video/tegra/fb.c @@ -432,6 +432,8 @@ static int tegra_fb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long } int tegra_fb_get_mode(struct tegra_dc *dc) { + if (!dc->fb->info->mode) + return -1; return dc->fb->info->mode->refresh; } |