centos man page for blk_alloc_devt

BLK_ALLOC_DEVT(9)						   Block Devices						 BLK_ALLOC_DEVT(9)

NAME
       blk_alloc_devt - allocate a dev_t for a partition

SYNOPSIS
       int blk_alloc_devt(struct hd_struct * part, dev_t * devt);

ARGUMENTS
       part
	   partition to allocate dev_t for

       devt
	   out parameter for resulting dev_t

DESCRIPTION
       Allocate a dev_t for block device.

RETURNS
       0 on success, allocated dev_t is returned in *devt. -errno on failure.

CONTEXT
       Might sleep.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							 BLK_ALLOC_DEVT(9)