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authorChristof Schmitt <christof.schmitt@de.ibm.com>2009-09-24 10:23:23 +0200
committerJames Bottomley <James.Bottomley@suse.de>2009-10-02 09:49:59 -0500
commit1f99bd4cbfa50be144aee24905befc1209d90d47 (patch)
tree623218f3c760153a5a5103f961cf1726af18ff9e /drivers/s390/scsi/zfcp_ccw.c
parentc5afd81e5d7ebacc9dd23954e169ac79a34fe399 (diff)
downloadop-kernel-dev-1f99bd4cbfa50be144aee24905befc1209d90d47.zip
op-kernel-dev-1f99bd4cbfa50be144aee24905befc1209d90d47.tar.gz
[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 <felix.beck@de.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/s390/scsi/zfcp_ccw.c')
-rw-r--r--drivers/s390/scsi/zfcp_ccw.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index ef5282d..95644b7 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);
}
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