treewide: Introduce MAP_FAILED and replace ad-hoc constants with it

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/fs.c b/fs/fs.c
index 625ed10b70..a304bf1863 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -533,7 +533,7 @@ void *memmap(int fd, int flags)
 {
 	struct fs_driver_d *fsdrv;
 	FILE *f;
-	void *retp = (void *)-1;
+	void *retp = MAP_FAILED;
 	int ret;
 
 	if (check_fd(fd))