From: David Lin <dtwlin@google.com>
Date: Mon, 18 Apr 2016 20:11:31 +0000 (-0700)
Subject: greybus: es2: Fix apb_log null pointer exception
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=05a849191f964cf684777fed9ac471d59f2f18ef;p=linux-beck.git

greybus: es2: Fix apb_log null pointer exception

Read on apb_log causes null pointer exception due to the missing es2
device pointer passing to the debugfs.

Testing done:
- Enable apb_log and cat it

Signed-off-by: David Lin <dtwlin@google.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
---

diff --git a/drivers/staging/greybus/es2.c b/drivers/staging/greybus/es2.c
index 239adf7a3749..9e06efb77243 100644
--- a/drivers/staging/greybus/es2.c
+++ b/drivers/staging/greybus/es2.c
@@ -842,7 +842,7 @@ static void usb_log_enable(struct es2_ap_dev *es2)
 		return;
 	/* XXX We will need to rename this per APB */
 	es2->apb_log_dentry = debugfs_create_file("apb_log", S_IRUGO,
-						gb_debugfs_get(), NULL,
+						gb_debugfs_get(), es2,
 						&apb_log_fops);
 }