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authorTakahiro Yasui <tyasui@redhat.com>2009-01-06 03:04:56 +0000
committerAlasdair G Kergon <agk@redhat.com>2009-01-06 03:04:56 +0000
commitc7a2bd19b7c1e0bd2c7604c53d2583e91e536948 (patch)
treebb896040c05397026745de9d05bd6f491d26603f /drivers/md/dm-log.c
parent90fa1527bddc7147dc0d590ee6184ca88bc50ecf (diff)
downloadlinux-c7a2bd19b7c1e0bd2c7604c53d2583e91e536948.tar.bz2
dm log: fix dm_io_client leak on error paths
In create_log_context function, dm_io_client_destroy function needs to be called, when memory allocation of disk_header, sync_bits and recovering_bits failed, but dm_io_client_destroy is not called. Cc: stable@kernel.org Signed-off-by: Takahiro Yasui <tyasui@redhat.com> Acked-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/dm-log.c')
-rw-r--r--drivers/md/dm-log.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c
index a8c0fc79ca78..13e2a1a1a941 100644
--- a/drivers/md/dm-log.c
+++ b/drivers/md/dm-log.c
@@ -467,6 +467,7 @@ static int create_log_context(struct dm_dirty_log *log, struct dm_target *ti,
lc->disk_header = vmalloc(buf_size);
if (!lc->disk_header) {
DMWARN("couldn't allocate disk log buffer");
+ dm_io_client_destroy(lc->io_req.client);
kfree(lc);
return -ENOMEM;
}
@@ -482,6 +483,8 @@ static int create_log_context(struct dm_dirty_log *log, struct dm_target *ti,
DMWARN("couldn't allocate sync bitset");
if (!dev)
vfree(lc->clean_bits);
+ else
+ dm_io_client_destroy(lc->io_req.client);
vfree(lc->disk_header);
kfree(lc);
return -ENOMEM;
@@ -495,6 +498,8 @@ static int create_log_context(struct dm_dirty_log *log, struct dm_target *ti,
vfree(lc->sync_bits);
if (!dev)
vfree(lc->clean_bits);
+ else
+ dm_io_client_destroy(lc->io_req.client);
vfree(lc->disk_header);
kfree(lc);
return -ENOMEM;