btrfs-progs: use correct the return value

The return values 12 and 13 are not used spectially except as return
value. No description and definition about them. so I change them to
generic errno.

Signed-off-by: Fan Chengniang <fancn.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>

diff --git a/qgroup.c b/qgroup.c
index d59f4bb..5a4e393 100644 (file)
--- a/qgroup.c
+++ b/qgroup.c
@@ -21,6 +21,7 @@
 #include "ctree.h"
 #include "ioctl.h"
 #include "utils.h"
+#include <errno.h>
 
 #define BTRFS_QGROUP_NFILTERS_INCREASE (2 * BTRFS_QGROUP_FILTER_MAX)
 #define BTRFS_QGROUP_NCOMPS_INCREASE (2 * BTRFS_QGROUP_COMP_MAX)
@@ -1294,7 +1295,7 @@ qgroup_inherit_realloc(struct btrfs_qgroup_inherit **inherit, int n, int pos)
        out = calloc(sizeof(*out) + sizeof(out->qgroups[0]) * (nitems + n), 1);
        if (out == NULL) {
                fprintf(stderr, "ERROR: Not enough memory\n");
-               return 13;
+               return -ENOMEM;
        }
 
        if (*inherit) {
@@ -1322,7 +1323,7 @@ int qgroup_inherit_add_group(struct btrfs_qgroup_inherit **inherit, char *arg)
 
        if (qgroupid == 0) {
                fprintf(stderr, "ERROR: bad qgroup specification\n");
-               return 12;
+               return -EINVAL;
        }
 
        if (*inherit)
@@ -1349,7 +1350,7 @@ int qgroup_inherit_add_copy(struct btrfs_qgroup_inherit **inherit, char *arg,
        if (!p) {
 bad:
                fprintf(stderr, "ERROR: bad copy specification\n");
-               return 12;
+               return -EINVAL;
        }
        *p = 0;
        qgroup_src = parse_qgroupid(arg);