From: Zongdong Jiao <zongdong.jiao@amlogic.com>
Date: Thu, 13 Dec 2018 05:31:27 +0000 (+0800)
Subject: hdmitx: fix a resmue panic isse [1/1]
X-Git-Tag: khadas-vims-v0.9.6-release~1065
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=565b50a4e05eff2f9fb11047448a82e328495084;p=platform%2Fkernel%2Flinux-amlogic.git

hdmitx: fix a resmue panic isse [1/1]

PD#SWPL-3188

Problem:
When HDMI cable is not connected(that is CVBS out), and system
may be panic after resume.

Solution:
Add NULL pointer protection check

Verify:
P212

Change-Id: I60818faaf7049667501e31990fa557b754ea7f1b
Signed-off-by: Zongdong Jiao <zongdong.jiao@amlogic.com>
---

diff --git a/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_main.c b/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_main.c
index 5705066..9acd7f9 100644
--- a/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_main.c
+++ b/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_main.c
@@ -165,7 +165,7 @@ static void hdmitx_late_resume(struct early_suspend *h)
 	if (phdmi->hdmitx_clk_tree.hdmi_clk_vpu != NULL)
 		clk_prepare_enable(phdmi->hdmitx_clk_tree.hdmi_clk_vpu);
 
-	if (hdmitx_is_hdmi_vmode(info->name) == 1)
+	if (info && (hdmitx_is_hdmi_vmode(info->name) == 1))
 		phdmi->HWOp.CntlMisc(&hdmitx_device, MISC_HPLL_FAKE, 0);
 
 	phdmi->hpd_lock = 0;