btrfs-progs: don't have to report ENOMEDIUM error during open

when we scan /proc/partitions the cdrom is scanned
as well, and we don't have to report ENOMEDIUM errors
against it.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/utils.c b/utils.c
index 46f502d6..6b4c4a7b 100644
--- a/utils.c
+++ b/utils.c
@@ -1438,8 +1438,9 @@ scan_again:
 
 		fd = open(fullpath, O_RDONLY);
 		if (fd < 0) {
-			fprintf(stderr, "failed to open %s: %s\n",
-				fullpath, strerror(errno));
+			if (errno != ENOMEDIUM)
+				fprintf(stderr, "failed to open %s: %s\n",
+					fullpath, strerror(errno));
 			continue;
 		}
 		ret = btrfs_scan_one_device(fd, fullpath, &tmp_devices,