scsi: vmw_pscsi: Rearrange code to avoid multiple calls to free_irq during unload

BugLink: https://bugs.launchpad.net/bugs/1837257
[ Upstream commit 02f425f811cefcc4d325d7a72272651e622dc97e ]

Currently pvscsi_remove calls free_irq more than once as
pvscsi_release_resources and __pvscsi_shutdown both call
pvscsi_shutdown_intr. This results in a 'Trying to free already-free IRQ'
warning and stack trace. To solve the problem pvscsi_shutdown_intr has been
moved out of pvscsi_release_resources.

Signed-off-by: Cathy Avery <cavery@redhat.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c
index 0cd947f78b5bfdfa013ce4909afdc8f894b6146b..890b8aaf95e10b815a6621ae4177a17706954c99 100644 (file)
--- a/drivers/scsi/vmw_pvscsi.c
+++ b/drivers/scsi/vmw_pvscsi.c
@@ -1202,8 +1202,6 @@ static void pvscsi_shutdown_intr(struct pvscsi_adapter *adapter)
 
 static void pvscsi_release_resources(struct pvscsi_adapter *adapter)
 {
-       pvscsi_shutdown_intr(adapter);
-
        if (adapter->workqueue)
                destroy_workqueue(adapter->workqueue);
 
@@ -1535,6 +1533,7 @@ static int pvscsi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 out_reset_adapter:
        ll_adapter_reset(adapter);
 out_release_resources:
+       pvscsi_shutdown_intr(adapter);
        pvscsi_release_resources(adapter);
        scsi_host_put(host);
 out_disable_device:
@@ -1543,6 +1542,7 @@ out_disable_device:
        return error;
 
 out_release_resources_and_disable:
+       pvscsi_shutdown_intr(adapter);
        pvscsi_release_resources(adapter);
        goto out_disable_device;
 }