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path: root/drivers/scsi/scsi.c
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Diffstat (limited to 'drivers/scsi/scsi.c')
-rw-r--r--drivers/scsi/scsi.c37
1 files changed, 12 insertions, 25 deletions
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index fb86479..2b12983 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -284,27 +284,19 @@ EXPORT_SYMBOL_GPL(__scsi_get_command);
*/
struct scsi_cmnd *scsi_get_command(struct scsi_device *dev, gfp_t gfp_mask)
{
- struct scsi_cmnd *cmd;
+ struct scsi_cmnd *cmd = __scsi_get_command(dev->host, gfp_mask);
+ unsigned long flags;
- /* Bail if we can't get a reference to the device */
- if (!get_device(&dev->sdev_gendev))
+ if (unlikely(cmd == NULL))
return NULL;
- cmd = __scsi_get_command(dev->host, gfp_mask);
-
- if (likely(cmd != NULL)) {
- unsigned long flags;
-
- cmd->device = dev;
- INIT_LIST_HEAD(&cmd->list);
- INIT_DELAYED_WORK(&cmd->abort_work, scmd_eh_abort_handler);
- spin_lock_irqsave(&dev->list_lock, flags);
- list_add_tail(&cmd->list, &dev->cmd_list);
- spin_unlock_irqrestore(&dev->list_lock, flags);
- cmd->jiffies_at_alloc = jiffies;
- } else
- put_device(&dev->sdev_gendev);
-
+ cmd->device = dev;
+ INIT_LIST_HEAD(&cmd->list);
+ INIT_DELAYED_WORK(&cmd->abort_work, scmd_eh_abort_handler);
+ spin_lock_irqsave(&dev->list_lock, flags);
+ list_add_tail(&cmd->list, &dev->cmd_list);
+ spin_unlock_irqrestore(&dev->list_lock, flags);
+ cmd->jiffies_at_alloc = jiffies;
return cmd;
}
EXPORT_SYMBOL(scsi_get_command);
@@ -313,10 +305,8 @@ EXPORT_SYMBOL(scsi_get_command);
* __scsi_put_command - Free a struct scsi_cmnd
* @shost: dev->host
* @cmd: Command to free
- * @dev: parent scsi device
*/
-void __scsi_put_command(struct Scsi_Host *shost, struct scsi_cmnd *cmd,
- struct device *dev)
+void __scsi_put_command(struct Scsi_Host *shost, struct scsi_cmnd *cmd)
{
unsigned long flags;
@@ -331,8 +321,6 @@ void __scsi_put_command(struct Scsi_Host *shost, struct scsi_cmnd *cmd,
if (likely(cmd != NULL))
scsi_pool_free_command(shost->cmd_pool, cmd);
-
- put_device(dev);
}
EXPORT_SYMBOL(__scsi_put_command);
@@ -346,7 +334,6 @@ EXPORT_SYMBOL(__scsi_put_command);
*/
void scsi_put_command(struct scsi_cmnd *cmd)
{
- struct scsi_device *sdev = cmd->device;
unsigned long flags;
/* serious error if the command hasn't come from a device list */
@@ -357,7 +344,7 @@ void scsi_put_command(struct scsi_cmnd *cmd)
cancel_delayed_work(&cmd->abort_work);
- __scsi_put_command(cmd->device->host, cmd, &sdev->sdev_gendev);
+ __scsi_put_command(cmd->device->host, cmd);
}
EXPORT_SYMBOL(scsi_put_command);