From a11442fe87d63994816cf2edde4450410df397af Mon Sep 17 00:00:00 2001
From: Christian Gromm <christian.gromm@microchip.com>
Date: Tue, 28 Jul 2015 17:16:11 +0200
Subject: [PATCH] Staging: most: fix passing a potential null pointer

This patch fixes passing of a potential null pointer.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/most/aim-cdev/cdev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/most/aim-cdev/cdev.c b/drivers/staging/most/aim-cdev/cdev.c
index cfc32dff6512..252a17cf153c 100644
--- a/drivers/staging/most/aim-cdev/cdev.c
+++ b/drivers/staging/most/aim-cdev/cdev.c
@@ -204,7 +204,8 @@ static ssize_t aim_write(struct file *filp, const char __user *buf,
 	}
 	return actual_len - retval;
 error:
-	most_put_mbo(mbo);
+	if (mbo)
+		most_put_mbo(mbo);
 	return err;
 }
 
-- 
2.39.5