diff options
Diffstat (limited to 'drivers/infiniband/ulp/srp/ib_srp.c')
| -rw-r--r-- | drivers/infiniband/ulp/srp/ib_srp.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 31207e66414..960dae5c87d 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -357,9 +357,9 @@ static void srp_remove_work(void *target_ptr) target->state = SRP_TARGET_REMOVED; spin_unlock_irq(target->scsi_host->host_lock); - down(&target->srp_host->target_mutex); + mutex_lock(&target->srp_host->target_mutex); list_del(&target->list); - up(&target->srp_host->target_mutex); + mutex_unlock(&target->srp_host->target_mutex); scsi_remove_host(target->scsi_host); ib_destroy_cm_id(target->cm_id); @@ -1155,6 +1155,12 @@ static int srp_send_tsk_mgmt(struct scsi_cmnd *scmnd, u8 func) spin_lock_irq(target->scsi_host->host_lock); + if (target->state == SRP_TARGET_DEAD || + target->state == SRP_TARGET_REMOVED) { + scmnd->result = DID_BAD_TARGET << 16; + goto out; + } + if (scmnd->host_scribble == (void *) -1L) goto out; @@ -1254,9 +1260,9 @@ static int srp_add_target(struct srp_host *host, struct srp_target_port *target) if (scsi_add_host(target->scsi_host, host->dev->dma_device)) return -ENODEV; - down(&host->target_mutex); + mutex_lock(&host->target_mutex); list_add_tail(&target->list, &host->target_list); - up(&host->target_mutex); + mutex_unlock(&host->target_mutex); target->state = SRP_TARGET_LIVE; @@ -1525,7 +1531,7 @@ static struct srp_host *srp_add_port(struct ib_device *device, u8 port) return NULL; INIT_LIST_HEAD(&host->target_list); - init_MUTEX(&host->target_mutex); + mutex_init(&host->target_mutex); init_completion(&host->released); host->dev = device; host->port = port; @@ -1626,7 +1632,7 @@ static void srp_remove_one(struct ib_device *device) * Mark all target ports as removed, so we stop queueing * commands and don't try to reconnect. */ - down(&host->target_mutex); + mutex_lock(&host->target_mutex); list_for_each_entry_safe(target, tmp_target, &host->target_list, list) { spin_lock_irqsave(target->scsi_host->host_lock, flags); @@ -1634,7 +1640,7 @@ static void srp_remove_one(struct ib_device *device) target->state = SRP_TARGET_REMOVED; spin_unlock_irqrestore(target->scsi_host->host_lock, flags); } - up(&host->target_mutex); + mutex_unlock(&host->target_mutex); /* * Wait for any reconnection tasks that may have |