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Commit 41a86ae2 authored by raghavendra ambadas's avatar raghavendra ambadas Committed by Gerrit - the friendly Code Review server
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msm: mdss: Fix potential null pointer dereference 



Add NULL checks before accessing potential null pointers.

Change-Id: Ibdecaa7664c21a0acf57a3dd2c473f7407520f6b
Signed-off-by: default avatarRaghavendra Ambadas <rambad@codeaurora.org>
parent 3b8fc0b7

drivers/video/fbdev/msm/mdss_mdp_overlay.c

+9 −0
Original line number Diff line number Diff line
@@ -6375,6 +6375,15 @@ void mdss_mdp_footswitch_ctrl_handler(bool on) 
static void mdss_mdp_signal_retire_fence(struct msm_fb_data_type *mfd,

					 int retire_cnt)

{

	struct mdss_overlay_private *mdp5_data;



	if (!mfd)

		return;



	mdp5_data = mfd_to_mdp5_data(mfd);

	if (!mdp5_data->ctl || !mdp5_data->ctl->ops.remove_vsync_handler)

		return;



	__vsync_retire_signal(mfd, retire_cnt);

	pr_debug("Signaled (%d) pending retire fence\n", retire_cnt);

}