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| author | Charles Bin <cbin@codeaurora.org> | 2014-07-30 14:28:51 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 20:32:25 -0700 |
| commit | ae7611148f1703544b7a092dab4770dae0ce83c2 (patch) | |
| tree | fa95361daa311cb778e6a7e58530860b3af79dc6 /drivers/video/fbdev | |
| parent | 7c70e9299f4a319ee819c43a356b5514adb4d0df (diff) | |
mdss: hdmi: Fix null dereferences
Add null check to fix potential null dereferences in driver.
Change-Id: I913d4a8e5dc3e61e534243ab77d788ad64815b28
Signed-off-by: Charles Bin <cbin@codeaurora.org>
Diffstat (limited to 'drivers/video/fbdev')
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_hdmi_hdcp.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/video/fbdev/msm/mdss_hdmi_hdcp.c b/drivers/video/fbdev/msm/mdss_hdmi_hdcp.c index 229297a156f8..e8d6e0f8f6af 100644 --- a/drivers/video/fbdev/msm/mdss_hdmi_hdcp.c +++ b/drivers/video/fbdev/msm/mdss_hdmi_hdcp.c @@ -1046,6 +1046,11 @@ error: DEV_INFO("%s: %s: Authentication Part II successful\n", __func__, HDCP_STATE_NAME); + if (!hdcp_ctrl) { + DEV_ERR("%s: hdcp_ctrl null. Topology not updated\n", + __func__); + return rc; + } /* Update topology information */ hdcp_ctrl->current_tp.dev_count = down_stream_devices; hdcp_ctrl->current_tp.max_cascade_exceeded = max_cascade_exceeded; |