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path: root/drivers/scsi/scsi_sysfs.c
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Diffstat (limited to 'drivers/scsi/scsi_sysfs.c')
-rw-r--r--drivers/scsi/scsi_sysfs.c22
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 8d2312239ae0..21930c9ac9cd 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -1102,6 +1102,14 @@ void __scsi_remove_device(struct scsi_device *sdev)
1102{ 1102{
1103 struct device *dev = &sdev->sdev_gendev; 1103 struct device *dev = &sdev->sdev_gendev;
1104 1104
1105 /*
1106 * This cleanup path is not reentrant and while it is impossible
1107 * to get a new reference with scsi_device_get() someone can still
1108 * hold a previously acquired one.
1109 */
1110 if (sdev->sdev_state == SDEV_DEL)
1111 return;
1112
1105 if (sdev->is_visible) { 1113 if (sdev->is_visible) {
1106 if (scsi_device_set_state(sdev, SDEV_CANCEL) != 0) 1114 if (scsi_device_set_state(sdev, SDEV_CANCEL) != 0)
1107 return; 1115 return;
@@ -1110,7 +1118,9 @@ void __scsi_remove_device(struct scsi_device *sdev)
1110 device_unregister(&sdev->sdev_dev); 1118 device_unregister(&sdev->sdev_dev);
1111 transport_remove_device(dev); 1119 transport_remove_device(dev);
1112 scsi_dh_remove_device(sdev); 1120 scsi_dh_remove_device(sdev);
1113 } 1121 device_del(dev);
1122 } else
1123 put_device(&sdev->sdev_dev);
1114 1124
1115 /* 1125 /*
1116 * Stop accepting new requests and wait until all queuecommand() and 1126 * Stop accepting new requests and wait until all queuecommand() and
@@ -1121,16 +1131,6 @@ void __scsi_remove_device(struct scsi_device *sdev)
1121 blk_cleanup_queue(sdev->request_queue); 1131 blk_cleanup_queue(sdev->request_queue);
1122 cancel_work_sync(&sdev->requeue_work); 1132 cancel_work_sync(&sdev->requeue_work);
1123 1133
1124 /*
1125 * Remove the device after blk_cleanup_queue() has been called such
1126 * a possible bdi_register() call with the same name occurs after
1127 * blk_cleanup_queue() has called bdi_destroy().
1128 */
1129 if (sdev->is_visible)
1130 device_del(dev);
1131 else
1132 put_device(&sdev->sdev_dev);
1133
1134 if (sdev->host->hostt->slave_destroy) 1134 if (sdev->host->hostt->slave_destroy)
1135 sdev->host->hostt->slave_destroy(sdev); 1135 sdev->host->hostt->slave_destroy(sdev);
1136 transport_destroy_device(dev); 1136 transport_destroy_device(dev);