Add check for the return value of alloc_ordered_workqueue()
in esas2r_init_adapter() to catch potential exception.
Fixes: 4cb1b41a5ee4 ("scsi: esas2r: Simplify an alloc_ordered_workqueue() invocation")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
---
drivers/scsi/esas2r/esas2r_init.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/scsi/esas2r/esas2r_init.c b/drivers/scsi/esas2r/esas2r_init.c
index 04a07fe57be2..9c0225a1f208 100644
--- a/drivers/scsi/esas2r/esas2r_init.c
+++ b/drivers/scsi/esas2r/esas2r_init.c
@@ -313,6 +313,11 @@ int esas2r_init_adapter(struct Scsi_Host *host, struct pci_dev *pcid,
esas2r_fw_event_off(a);
a->fw_event_q =
alloc_ordered_workqueue("esas2r/%d", WQ_MEM_RECLAIM, a->index);
+ if (!a->fw_event_q) {
+ esas2r_log(ESAS2R_LOG_CRIT, "failed to create work queue\n");
+ esas2r_kill_adapter(index);
+ return 0;
+ }
init_waitqueue_head(&a->buffered_ioctl_waiter);
init_waitqueue_head(&a->nvram_waiter);
--
2.25.1