File btrfs-progs-fix-defrag-c-option-parsing.patch of Package btrfsprogs.31993

From 61e00694e799e1d54c98124880ca03a08dd5d4a2 Mon Sep 17 00:00:00 2001
From: David Sterba <dsterba@suse.com>
Date: Sat, 18 Sep 2021 17:44:57 +0200
Subject: [PATCH] btrfs-progs: fix defrag -c option parsing

The refactoring f3a132fa1b8c ("btrfs-progs: factor out compression type
name parsing to common utils") caused a bug with parsing option -c with
defrag:

  # btrfs fi defrag -v -czstd file
  ERROR: unknown compression type: zstd

  # btrfs fi defrag -v -clzo file
  ERROR: unknown compression type: lzo

  # btrfs fi defrag -v -czlib file
  ERROR: unknown compression type: zlib

Fix it by properly checking the value representing unknown compression
algorithm.

Issue: #403
Signed-off-by: David Sterba <dsterba@suse.com>
---
 cmds/filesystem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmds/filesystem.c b/cmds/filesystem.c
index 9a41137d..c338571a 100644
--- a/cmds/filesystem.c
+++ b/cmds/filesystem.c
@@ -835,7 +835,7 @@ static int parse_compress_type_arg(char *s)
 	int ret;
 
 	ret = parse_compress_type(s);
-	if (ret) {
+	if (ret < 0) {
 		error("unknown compression type: %s", s);
 		exit(1);
 	}
-- 
2.35.3