btrfs-progs: Fix the return value when executing 'btrfs prop get' on an uncompressed file

When executing 'btrfs prop get' on a file which is not compressed, return
value will always be 50 since prop_compress() return -ENOATTR.

But the codes have already check the errno to avoid unnecessary error
message, so the return value should also set to 0.

Signed-off-by: Qu Wenruo <quwenro@cn.fujitsu.com>
Reviewed-by: Filipe Manana <fdmanana@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>

1 files changed, 3 insertions, 1 deletions

diff --git a/props.c b/props.c
index 4d0aeeab..c09865b3 100644
--- a/props.c
+++ b/props.c
@@ -142,10 +142,12 @@ static int prop_compression(enum prop_object_type type,
 		sret = fgetxattr(fd, xattr_name, NULL, 0);
 	if (sret < 0) {
 		ret = -errno;
-		if (ret != -ENODATA)
+		if (ret != -ENOATTR)
 			fprintf(stderr,
 				"ERROR: failed to %s compression for %s. %s\n",
 				value ? "set" : "get", object, strerror(-ret));
+		else
+			ret = 0;
 		goto out;
 	}
 	if (!value) {