[patch] ibmvfc: prevent a potential deadlock
From: Dan Carpenter <hidden>
Date: 2016-07-15 11:18:57
Also in:
kernel-janitors, linux-scsi
Subsystem:
ibm power virtual fc device drivers, linux for powerpc (32-bit and 64-bit), scsi subsystem, the rest · Maintainers:
Tyrel Datwyler, Madhavan Srinivasan, "James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
My static checker complains that we need to unlock on this path. Seems true. Signed-off-by: Dan Carpenter <redacted>
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index fc523c3..ab67ec4 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c@@ -4722,6 +4722,8 @@ static void ibmvfc_rport_add_thread(struct work_struct *work) tgt_dbg(tgt, "Setting rport roles\n"); fc_remote_port_rolechg(rport, tgt->ids.roles); put_device(&rport->dev); + } else { + spin_unlock_irqrestore(vhost->host->host_lock, flags); } kref_put(&tgt->kref, ibmvfc_release_tgt);