Commit 5afeaf87 authored Feb 26, 2014 by Sree Sesha Aravind Vadrevu

msm: mdss: Sanitize overlay kickoff inputs



Overlay kickoff in certain situations can be called without a ctl
attached to the frame buffer device. These situations need to
be captured and logical path should return safely.

CRs-fixed: 619588
Change-Id: Ibee6b59be667b7e5c9841ffb49c67d86bde45026
Signed-off-by: Sree Sesha Aravind Vadrevu <svadrevu@codeaurora.org>

parent 6390607e

drivers/video/msm/mdss/mdss_mdp_overlay.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -993,6 +993,11 @@ int mdss_mdp_overlay_kickoff(struct msm_fb_data_type *mfd,
		int ret = 0;
		int sd_in_pipe = 0;

		if (!ctl) {
		pr_warn("kickoff on fb=%d without a ctl attched\n", mfd->index);
		return ret;
		}

		if (ctl->shared_lock)
		mutex_lock(ctl->shared_lock);