From: Rongjun Chen <rongjun.chen@amlogic.com>
Date: Thu, 13 Dec 2018 02:05:27 +0000 (+0800)
Subject: wifi: fix r311 wifi panic issue [1/1]
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=aa25c0d56cb754945088c8c65cbbc16041bc2091;p=GitHub%2FLineageOS%2FG12%2Fandroid_hardware_amlogic_kernel-modules_dhd-driver.git

wifi: fix r311 wifi panic issue [1/1]

PD#SWPL-3107

Problem:
r311 autoreboot wifi panic

Solution:
fix the null pointer issue

Verify:
r311

Change-Id: Ia2d1f402ffa5a46e2bfb5367ba79890f8b8d3cc8
---

diff --git a/bcmdhd.1.579.77.41.1.cn/dhd_linux.c b/bcmdhd.1.579.77.41.1.cn/dhd_linux.c
index 0264224..9d769fe 100644
--- a/bcmdhd.1.579.77.41.1.cn/dhd_linux.c
+++ b/bcmdhd.1.579.77.41.1.cn/dhd_linux.c
@@ -13826,8 +13826,10 @@ err:
 void
 dhd_os_close_image(void *image)
 {
-	if (image)
-		filp_close((struct file *)image, NULL);
+	struct file *filp = image;
+
+	if (filp && filp->f_op)
+		filp_close(filp, NULL);
 }
 
 void