From 1f99bd4cbfa50be144aee24905befc1209d90d47 Mon Sep 17 00:00:00 2001 From: Christof Schmitt Date: Thu, 24 Sep 2009 10:23:23 +0200 Subject: [SCSI] zfcp: Fix oops during shutdown of offline device With the change that the zfcp_adapter struct is only allocated when the device is set online, the shutdown handler has to check for a non-existing zfcp_adapter struct. On the other hand, this check is not necessary in the offline callback, since an online device has the zfcp_adapter allocated and we go through the offline callback before removing the ccw device. Reviewed-by: Felix Beck Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_ccw.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c index ef5282dcdbb..95644b71836 100644 --- a/drivers/s390/scsi/zfcp_ccw.c +++ b/drivers/s390/scsi/zfcp_ccw.c @@ -192,13 +192,9 @@ static int zfcp_ccw_set_offline(struct ccw_device *ccw_device) mutex_lock(&zfcp_data.config_mutex); adapter = dev_get_drvdata(&ccw_device->dev); - if (!adapter) - goto out; - zfcp_erp_adapter_shutdown(adapter, 0, "ccsoff1", NULL); zfcp_erp_wait(adapter); mutex_unlock(&zfcp_data.config_mutex); -out: return 0; } @@ -253,9 +249,13 @@ static void zfcp_ccw_shutdown(struct ccw_device *cdev) mutex_lock(&zfcp_data.config_mutex); adapter = dev_get_drvdata(&cdev->dev); + if (!adapter) + goto out; + zfcp_erp_adapter_shutdown(adapter, 0, "ccshut1", NULL); zfcp_erp_wait(adapter); zfcp_erp_thread_kill(adapter); +out: mutex_unlock(&zfcp_data.config_mutex); } -- cgit v1.2.3