[SCSI] Return VPD page length in scsi_vpd_inquiry()
[SCSI] Return VPD page length in scsi_vpd_inquiry()

We should be returning the number of bytes of the
requested VPD page in scsi_vpd_inquiry.
This makes it easier for the caller to verify the
required space.

[jejb: fix up mm warning spotted by Sergey]
Tested-by: Sergey Senozhatsky <d9c384f6b6e27869ff3b53bd225c29030ac4166b@gmail.com>
Signed-off-by: Hannes Reinecke <b0d1e9e4a4e27620745ff49be9000da3174a4cc6@suse.de>
Signed-off-by: James Bottomley <1acebbdca565c7b6b638bdc23b58b5610d1a56b8@Parallels.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs