btrfs-progs: Replace the overkill assert with normal error message.

When 'btrfs replace status' encounters an unknown dev replace status, it
will cause an assert, which is somewhat overkilled and can be replaced
with a normal error message.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>

1 files changed, 6 insertions, 3 deletions

diff --git a/cmds-replace.c b/cmds-replace.c
index 645dc988..9eb981ba 100644
--- a/cmds-replace.c
+++ b/cmds-replace.c
@@ -449,7 +449,10 @@ static int print_replace_status(int fd, const char *path, int once)
 			break;
 		default:
 			prevent_loop = 1;
-			assert(0);
+			fprintf(stderr,
+				"Unknown btrfs dev replace status:%llu",
+				status->replace_state);
+			ret = -EINVAL;
 			break;
 		}
 
@@ -459,9 +462,9 @@ static int print_replace_status(int fd, const char *path, int once)
 				(unsigned long long)status->num_write_errors,
 				(unsigned long long)
 				 status->num_uncorrectable_read_errors);
-		if (once || prevent_loop) {
+		if (once || prevent_loop || ret) {
 			printf("\n");
-			return 0;
+			return ret;
 		}
 
 		fflush(stdout);