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>

1 files changed, 1 insertions, 1 deletions

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')