Merge "msm: mdss: release all overlay resources on last fb release" (1931218a) · Commits · e / devices / android_kernel_sony_msm8994

drivers/video/msm/mdss/mdss_fb.c

+17 −0

Original line number	Diff line number	Diff line
		@@ -1205,6 +1205,8 @@ static int mdss_fb_release_all(struct fb_info *info, bool release_all)
		struct mdss_fb_proc_info pinfo = NULL, temp_pinfo = NULL;
		int ret = 0;
		int pid = current->tgid;
		bool unknown_pid = true;
		struct task_struct *task;

		if (!mfd->ref_cnt) {
		pr_info("try to close unopened fb %d!\n", mfd->index);
		@@ -1219,6 +1221,7 @@ static int mdss_fb_release_all(struct fb_info *info, bool release_all)
		if (!release_all && (pinfo->pid != pid))
		continue;

		unknown_pid = false;
		pr_debug("found process entry pid=%d ref=%d\n", pinfo->pid,
		pinfo->ref_cnt);

		@@ -1244,6 +1247,20 @@ static int mdss_fb_release_all(struct fb_info *info, bool release_all)
		}
		}

		if (unknown_pid) {
		task = current->group_leader;
		pr_debug("unknown process %s pid=%d mfd->ref_cnt=%d\n",
		task->comm, pid, mfd->ref_cnt);

		mfd->ref_cnt--;
		if (mfd->mdp.release_fnc) {
		ret = mfd->mdp.release_fnc(mfd);
		if (ret)
		pr_err("error releasing fb%d pid=%d\n",
		mfd->index, pinfo->pid);
		}
		}

		if (!mfd->ref_cnt) {
		ret = mdss_fb_blank_sub(FB_BLANK_POWERDOWN, info,
		mfd->op_enable);