From 166a72878f76e911f2d1ce4b2310d4403e94be11 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Tue, 8 Jan 2008 07:59:05 +0900 Subject: [PATCH] [SCSI] fix scsi_setup_command_freelist failure path race Looks like that host_cmd_pool_mutex are necessary here. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley --- drivers/scsi/scsi.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index ebc019380835..54ff611b8677 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -319,17 +319,16 @@ int scsi_setup_command_freelist(struct Scsi_Host *shost) GFP_KERNEL | shost->cmd_pool->gfp_mask); if (!cmd) goto fail2; - list_add(&cmd->list, &shost->free_list); + list_add(&cmd->list, &shost->free_list); return 0; fail2: + mutex_lock(&host_cmd_pool_mutex); if (!--pool->users) kmem_cache_destroy(pool->slab); - return -ENOMEM; fail: mutex_unlock(&host_cmd_pool_mutex); return -ENOMEM; - } /** -- 2.20.1