diff options
Diffstat (limited to 'arch/s390/pci/pci_event.c')
| -rw-r--r-- | arch/s390/pci/pci_event.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/arch/s390/pci/pci_event.c b/arch/s390/pci/pci_event.c index 4d9773ef9e..dbe95ec591 100644 --- a/arch/s390/pci/pci_event.c +++ b/arch/s390/pci/pci_event.c @@ -267,6 +267,7 @@ static void __zpci_event_error(struct zpci_ccdf_err *ccdf) zpci_err_hex(ccdf, sizeof(*ccdf)); if (zdev) { + mutex_lock(&zdev->state_lock); zpci_update_fh(zdev, ccdf->fh); if (zdev->zbus->bus) pdev = pci_get_slot(zdev->zbus->bus, zdev->devfn); @@ -294,6 +295,8 @@ static void __zpci_event_error(struct zpci_ccdf_err *ccdf) } pci_dev_put(pdev); no_pdev: + if (zdev) + mutex_unlock(&zdev->state_lock); zpci_zdev_put(zdev); } @@ -326,6 +329,10 @@ static void __zpci_event_availability(struct zpci_ccdf_avail *ccdf) zpci_dbg(3, "avl fid:%x, fh:%x, pec:%x\n", ccdf->fid, ccdf->fh, ccdf->pec); + + if (existing_zdev) + mutex_lock(&zdev->state_lock); + switch (ccdf->pec) { case 0x0301: /* Reserved|Standby -> Configured */ if (!zdev) { @@ -348,7 +355,7 @@ static void __zpci_event_availability(struct zpci_ccdf_avail *ccdf) break; case 0x0303: /* Deconfiguration requested */ if (zdev) { - /* The event may have been queued before we confirgured + /* The event may have been queued before we configured * the device. */ if (zdev->state != ZPCI_FN_STATE_CONFIGURED) @@ -359,7 +366,7 @@ static void __zpci_event_availability(struct zpci_ccdf_avail *ccdf) break; case 0x0304: /* Configured -> Standby|Reserved */ if (zdev) { - /* The event may have been queued before we confirgured + /* The event may have been queued before we configured * the device.: */ if (zdev->state == ZPCI_FN_STATE_CONFIGURED) @@ -383,8 +390,10 @@ static void __zpci_event_availability(struct zpci_ccdf_avail *ccdf) default: break; } - if (existing_zdev) + if (existing_zdev) { + mutex_unlock(&zdev->state_lock); zpci_zdev_put(zdev); + } } void zpci_event_availability(void *data) |