From e009afe43fc882fee84d2f25f6670eeacef30ec0 Mon Sep 17 00:00:00 2001
From: Vinayak Pane <vpane@nvidia.com>
Date: Wed, 16 Jul 2014 20:27:23 -0700
Subject: [PATCH] HID: hidraw: check disconnect before get raw report

Bug 200021849

Change-Id: I4096a25b251a351eeae627a776683adfec7dd197
Signed-off-by: Vinayak Pane <vpane@nvidia.com>
Reviewed-on: http://git-master/r/439070
GVS: Gerrit_Virtual_Submit
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
---
 drivers/hid/hidraw.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 07e35d94b47..5fe2fe3eac7 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -183,6 +183,11 @@ static ssize_t hidraw_get_report(struct file *file, char __user *buffer, size_t
 	int ret = 0, len;
 	unsigned char report_number;
 
+	if (!hidraw_table[minor] || !hidraw_table[minor]->exist) {
+		ret = -ENODEV;
+		goto out;
+	}
+
 	dev = hidraw_table[minor]->hid;
 
 	if (!dev->hid_get_raw_report) {
-- 
2.39.2