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authorHeinz Mauelshagen <heinzm@redhat.com>2016-06-24 21:49:26 +0200
committerMike Snitzer <snitzer@redhat.com>2016-07-18 15:37:28 -0400
commitb1956dc4fa5c055e2229b848de418f1528ae7990 (patch)
tree49e0b31333ae124e735cdeef6a3bc1d2c5d7c08c /drivers/md/dm-raid.c
parent65359ee6b106cfb74b50bd0f63714955371ef780 (diff)
downloadop-kernel-dev-b1956dc4fa5c055e2229b848de418f1528ae7990.zip
op-kernel-dev-b1956dc4fa5c055e2229b848de418f1528ae7990.tar.gz
dm raid: fix ctr memory leaks on error paths
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-raid.c')
-rw-r--r--drivers/md/dm-raid.c25
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 109d698..2fb5a9b 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -2738,7 +2738,7 @@ static int raid_ctr(struct dm_target *ti, unsigned argc, char **argv)
*/
r = rs_set_dev_and_array_sectors(rs, false);
if (r)
- return r;
+ goto bad;
calculated_dev_sectors = rs->dev[0].rdev.sectors;
@@ -2769,20 +2769,23 @@ static int raid_ctr(struct dm_target *ti, unsigned argc, char **argv)
if (rs_is_raid6(rs) &&
test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags)) {
ti->error = "'nosync' not allowed for new raid6 set";
- return -EINVAL;
+ r = -EINVAL;
+ goto bad;
}
rs_setup_recovery(rs, 0);
} else if (rs_is_recovering(rs) || rs_is_reshaping(rs)) {
/* Have to reject size change request during recovery/reshape */
if (calculated_dev_sectors != rs->dev[0].rdev.sectors) {
ti->error = "Can't resize a recovering/reshaping raid set";
- return -EPERM;
+ r = -EPERM;
+ goto bad;
}
/* skip setup rs */
} else if (rs_takeover_requested(rs)) {
if (rs_is_reshaping(rs)) {
ti->error = "Can't takeover a reshaping raid set";
- return -EPERM;
+ r = -EPERM;
+ goto bad;
}
/*
@@ -2792,11 +2795,11 @@ static int raid_ctr(struct dm_target *ti, unsigned argc, char **argv)
*/
r = rs_check_takeover(rs);
if (r)
- return r;
+ goto bad;
r = rs_setup_takeover(rs);
if (r)
- return r;
+ goto bad;
set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags);
set_bit(RT_FLAG_KEEP_RS_FROZEN, &rs->runtime_flags);
@@ -2804,7 +2807,8 @@ static int raid_ctr(struct dm_target *ti, unsigned argc, char **argv)
} else if (rs_reshape_requested(rs)) {
if (rs_is_reshaping(rs)) {
ti->error = "raid set already reshaping!";
- return -EPERM;
+ r = -EPERM;
+ goto bad;
}
if (rs_is_raid10(rs)) {
@@ -2820,7 +2824,8 @@ static int raid_ctr(struct dm_target *ti, unsigned argc, char **argv)
*/
if (rs->raid_disks % rs->raid10_copies) {
ti->error = "Can't reshape raid10 mirror groups";
- return -EINVAL;
+ r = -EINVAL;
+ goto bad;
}
/* Userpace reordered disks to add/remove mirrors -> adjust raid_disk indexes */
@@ -2865,7 +2870,7 @@ static int raid_ctr(struct dm_target *ti, unsigned argc, char **argv)
/* If constructor requested it, change data and new_data offsets */
r = rs_adjust_data_offsets(rs);
if (r)
- return r;
+ goto bad;
/* Start raid set read-only and assumed clean to change in raid_resume() */
rs->md.ro = 1;
@@ -2899,7 +2904,7 @@ static int raid_ctr(struct dm_target *ti, unsigned argc, char **argv)
if (test_bit(RT_FLAG_RESHAPE_RS, &rs->runtime_flags)) {
r = rs_check_reshape(rs);
if (r)
- return r;
+ goto bad_check_reshape;
/* Restore new, ctr requested layout to perform check */
rs_config_restore(rs, &rs_layout);
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