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>

diff --git a/cmds-replace.c b/cmds-replace.c
index 645dc988c709a57f711062940e8b5274790f85fd..9eb981ba175a8aeb83b45464777359bb8ddf8421 100644 (file)
--- 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);