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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>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
This commit is contained in:
Peter Oberparleiter 2015-10-26 15:54:23 +01:00 committed by James Bottomley
parent edb394b512
commit 5cb9b40d61
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/scsi_sysfs.c
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@ -898,7 +898,7 @@ sdev_store_queue_ramp_up_period(struct device *dev,
return -EINVAL;
sdev->queue_ramp_up_period = msecs_to_jiffies(period);
return period;
return count;
}
static DEVICE_ATTR(queue_ramp_up_period, S_IRUGO | S_IWUSR,