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scsi_sysfs: Fix queue_ramp_up_period return code

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Writing a number to /sys/bus/scsi/devices/<sdev>/queue_ramp_up_period
returns the value of that number instead of the number of bytes written.
This behavior can confuse programs expecting POSIX write() semantics.
Fix this by returning the number of bytes written instead.

Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: stable@vger.kernel.org
Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Peter Oberparleiter 2015-10-27 10:49:54 +01:00 committed by Martin K. Petersen
parent 92e6246c8e
commit 863e02d0e1
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/scsi_sysfs.c
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@ -921,7 +921,7 @@ sdev_store_queue_ramp_up_period(struct device *dev,
return -EINVAL; return -EINVAL;
sdev->queue_ramp_up_period = msecs_to_jiffies(period); sdev->queue_ramp_up_period = msecs_to_jiffies(period);
return period; return count;
} }
static DEVICE_ATTR(queue_ramp_up_period, S_IRUGO | S_IWUSR, static DEVICE_ATTR(queue_ramp_up_period, S_IRUGO | S_IWUSR,