Commit 09ff92fe authored by Alan Stern's avatar Alan Stern Committed by James Bottomley
Browse files

[SCSI] sd: fix refcounting regression in suspend/resume routines 



This patch (as909) fixes a couple of refcounting errors in the sd
driver's suspend and resume methods.

Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent cab537d6

drivers/scsi/sd.c

+11 −7
Original line number Diff line number Diff line
@@ -1789,7 +1789,7 @@ static void sd_shutdown(struct device *dev) 
static int sd_suspend(struct device *dev, pm_message_t mesg)

{

	struct scsi_disk *sdkp = scsi_disk_get_from_dev(dev);

	int ret;

	int ret = 0;



	if (!sdkp)

		return 0;	/* this can happen */
@@ -1798,30 +1798,34 @@ static int sd_suspend(struct device *dev, pm_message_t mesg) 
		sd_printk(KERN_NOTICE, sdkp, "Synchronizing SCSI cache\n");

		ret = sd_sync_cache(sdkp);

		if (ret)

			return ret;

			goto done;

	}



	if (mesg.event == PM_EVENT_SUSPEND &&

	    sdkp->device->manage_start_stop) {

		sd_printk(KERN_NOTICE, sdkp, "Stopping disk\n");

		ret = sd_start_stop_device(sdkp, 0);

		if (ret)

			return ret;

	}



	return 0;

done:

	scsi_disk_put(sdkp);

	return ret;

}



static int sd_resume(struct device *dev)

{

	struct scsi_disk *sdkp = scsi_disk_get_from_dev(dev);

	int ret = 0;



	if (!sdkp->device->manage_start_stop)

		return 0;

		goto done;



	sd_printk(KERN_NOTICE, sdkp, "Starting disk\n");

	ret = sd_start_stop_device(sdkp, 1);



	return sd_start_stop_device(sdkp, 1);

done:

	scsi_disk_put(sdkp);

	return ret;

}



/**