Commit 47d0c2b4 authored Jul 12, 2016 by Jayant Shekhar Committed by Harsh Sahu Nov 29, 2016

msm: mdss: Fix null pointer reference during debug init



Some targets doesn't seem to have vbif_nrt_phys in dtsi
file but we still register the debug node for vbif_nrt_reg
and off without checking whether it exists or not. Ensure
this is checked to avoid null pointer reference.

Change-Id: Icce8823f80e586bc4827d8db18dceb2fb866c2f9
Signed-off-by: Jayant Shekhar <jshekhar@codeaurora.org>

parent 419c2b4a

drivers/video/fbdev/msm/mdss_mdp.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -1816,7 +1816,9 @@ static int mdss_mdp_debug_init(struct platform_device *pdev,
		mdss_debug_register_dump_range(pdev, dbg_blk, "qcom,regs-dump-mdp",
		"qcom,regs-dump-names-mdp", "qcom,regs-dump-xin-id-mdp");

		if (mdata->vbif_io.base)
		mdss_debug_register_io("vbif", &mdata->vbif_io, NULL);
		if (mdata->vbif_nrt_io.base)
		mdss_debug_register_io("vbif_nrt", &mdata->vbif_nrt_io, NULL);

		return 0;