From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 25 Sep 2012 07:05:33 +0000 (+0300)
Subject: remoteproc: return -EFAULT on copy_from_user failure
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=bec109a430e8c67bae1743f7e71898283234a77f;p=deliverable%2Flinux.git

remoteproc: return -EFAULT on copy_from_user failure

copy_from_user() returns the number of bytes remaining to be copied, but
we want to return an error code here.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
---

diff --git a/drivers/remoteproc/remoteproc_debugfs.c b/drivers/remoteproc/remoteproc_debugfs.c
index ea90a5643db3..157a57309601 100644
--- a/drivers/remoteproc/remoteproc_debugfs.c
+++ b/drivers/remoteproc/remoteproc_debugfs.c
@@ -161,7 +161,7 @@ rproc_recovery_write(struct file *filp, const char __user *user_buf,
 
 	ret = copy_from_user(buf, user_buf, count);
 	if (ret)
-		return ret;
+		return -EFAULT;
 
 	/* remove end of line */
 	if (buf[count - 1] == '\n')