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 ea90a5643db3b153403df22245b1d70dc9ebbf40..157a573096011a07d7e30cd40ce88166b9465c28 100644 (file)
--- 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')