ext4: fix awful goto in ext4_mb_new_blocks()
I think the whole function could be made prettier, but
that goto really took the cake for too-clever-by-half.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 526e553..27f421c 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4310,8 +4310,10 @@
repeat:
/* allocate space in core */
*errp = ext4_mb_regular_allocator(ac);
- if (*errp)
+ if (*errp) {
+ ext4_discard_allocated_blocks(ac);
goto errout;
+ }
/* as we've just preallocated more space than
* user requested orinally, we store allocated
@@ -4333,10 +4335,10 @@
ac->ac_b_ex.fe_len = 0;
ac->ac_status = AC_STATUS_CONTINUE;
goto repeat;
- } else if (*errp)
- errout:
+ } else if (*errp) {
ext4_discard_allocated_blocks(ac);
- else {
+ goto errout;
+ } else {
block = ext4_grp_offs_to_block(sb, &ac->ac_b_ex);
ar->len = ac->ac_b_ex.fe_len;
}
@@ -4347,6 +4349,7 @@
*errp = -ENOSPC;
}
+errout:
if (*errp) {
ac->ac_b_ex.fe_len = 0;
ar->len = 0;