[dm-devel] [2.6.29 PATCH 01] dm table: rework reference counting fix
Alasdair G Kergon
agk at redhat.com
Wed Jan 7 13:14:03 UTC 2009
From: Mikulas Patocka <mpatocka at redhat.com>
Fix an error introduced in dm-table-rework-reference-counting.patch.
When there is failure after table initialization, we need to use
dm_table_destroy, not dm_table_put, to free the table.
dm_table_put may be used only after dm_table_get.
Cc: Kiyoshi Ueda <k-ueda at ct.jp.nec.com>
Signed-off-by: Mikulas Patocka <mpatocka at redhat.com>
Signed-off-by: Alasdair G Kergon <agk at redhat.com>
---
drivers/md/dm-ioctl.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
Index: linux-2.6.28/drivers/md/dm-ioctl.c
===================================================================
--- linux-2.6.28.orig/drivers/md/dm-ioctl.c 2009-01-06 15:07:04.000000000 +0000
+++ linux-2.6.28/drivers/md/dm-ioctl.c 2009-01-06 21:36:12.000000000 +0000
@@ -1064,7 +1064,7 @@ static int table_load(struct dm_ioctl *p
r = populate_table(t, param, param_size);
if (r) {
- dm_table_put(t);
+ dm_table_destroy(t);
goto out;
}
@@ -1072,7 +1072,7 @@ static int table_load(struct dm_ioctl *p
hc = dm_get_mdptr(md);
if (!hc || hc->md != md) {
DMWARN("device has been removed from the dev hash table.");
- dm_table_put(t);
+ dm_table_destroy(t);
up_write(&_hash_lock);
r = -ENXIO;
goto out;
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