dm raid: clean up four equivalent goto tags in raid_ctr()

There are four equivalent goto tags in raid_ctr(), clean them up to
use just one.

There is no functional change and this is preparation to fix
raid_ctr()'s unprotected md_stop().

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>

diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 3d7366b912bfee4947015bf09c88b482813dc680..845b68c3fd5fe9a4fd8efdf372e81ded5aa85652 100644 (file)
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -3251,8 +3251,7 @@ size_check:
        r = md_start(&rs->md);
        if (r) {
                ti->error = "Failed to start raid array";
-               mddev_unlock(&rs->md);
-               goto bad_md_start;
+               goto bad_unlock;
        }
 
        /* If raid4/5/6 journal mode explicitly requested (only possible with journal dev) -> set it */
@@ -3260,8 +3259,7 @@ size_check:
                r = r5c_journal_mode_set(&rs->md, rs->journal_dev.mode);
                if (r) {
                        ti->error = "Failed to set raid4/5/6 journal mode";
-                       mddev_unlock(&rs->md);
-                       goto bad_journal_mode_set;
+                       goto bad_unlock;
                }
        }
 
@@ -3271,19 +3269,15 @@ size_check:
        /* Try to adjust the raid4/5/6 stripe cache size to the stripe size */
        if (rs_is_raid456(rs)) {
                r = rs_set_raid456_stripe_cache(rs);
-               if (r) {
-                       mddev_unlock(&rs->md);
-                       goto bad_stripe_cache;
-               }
+               if (r)
+                       goto bad_unlock;
        }
 
        /* Now do an early reshape check */
        if (test_bit(RT_FLAG_RESHAPE_RS, &rs->runtime_flags)) {
                r = rs_check_reshape(rs);
-               if (r) {
-                       mddev_unlock(&rs->md);
-                       goto bad_check_reshape;
-               }
+               if (r)
+                       goto bad_unlock;
 
                /* Restore new, ctr requested layout to perform check */
                rs_config_restore(rs, &rs_layout);
@@ -3292,8 +3286,7 @@ size_check:
                        r = rs->md.pers->check_reshape(&rs->md);
                        if (r) {
                                ti->error = "Reshape check failed";
-                               mddev_unlock(&rs->md);
-                               goto bad_check_reshape;
+                               goto bad_unlock;
                        }
                }
        }
@@ -3304,10 +3297,8 @@ size_check:
        mddev_unlock(&rs->md);
        return 0;
 
-bad_md_start:
-bad_journal_mode_set:
-bad_stripe_cache:
-bad_check_reshape:
+bad_unlock:
+       mddev_unlock(&rs->md);
        md_stop(&rs->md);
 bad:
        raid_set_free(rs);