From 57b6dec74da8dcfd35f1500b259b8f6bdf0945d4 Mon Sep 17 00:00:00 2001
From: Fabio D'Urso <fabiodurso@hotmail.it>
Date: Sun, 14 Jan 2018 17:09:23 -0600
Subject: [PATCH] If we want to open read-only in losetup.c, flags should be
 O_RDONLY not O_RDWR

---
 drivers/loop/losetup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/loop/losetup.c b/drivers/loop/losetup.c
index 32c2f4d437..0690776e23 100644
--- a/drivers/loop/losetup.c
+++ b/drivers/loop/losetup.c
@@ -440,7 +440,7 @@ int losetup(FAR const char *devname, FAR const char *filename,
     {
       /* If that fails, then try to open the device read-only */
 
-      fd = open(filename, O_RDWR);
+      fd = open(filename, O_RDONLY);
       if (fd < 0)
         {
           ret = -get_errno();