From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Date: Thu, 25 Jun 2015 22:00:19 +0000 (-0700)
Subject: zram: return zram device_id from zram_add()
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~106^2~80
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=92ff15288747b80730f0132e9c98403370c27b34;p=pandora-kernel.git

zram: return zram device_id from zram_add()

This patch prepares zram to enable on-demand device creation.
zram_add() performs automatic device_id assignment and returns
new device id (>= 0) or error code (< 0).

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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