From: Davidlohr Bueso <dave@stgolabs.net>
Date: Tue, 30 Jun 2015 21:58:36 +0000 (-0700)
Subject: ipc,shm: move BUG_ON check into shm_lock
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~53^2~30
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c5c8975b2eb4eb7604e8ce4f762987f56d2a96a2;p=pandora-kernel.git

ipc,shm: move BUG_ON check into shm_lock

Upon every shm_lock call, we BUG_ON if an error was returned, indicating
racing either in idr or in shm_destroy.  Move this logic into the locking.

[akpm@linux-foundation.org: simplify code]
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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