From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 10 May 2013 12:04:11 +0000 (+0200)
Subject: vfs: Fix invalid ida_remove() call
X-Git-Tag: v3.10-rc4~6^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5d477b6079619910dab882fa229cce1f14f86cf8;p=pandora-kernel.git

vfs: Fix invalid ida_remove() call

When the group id of a shared mount is not allocated, the umount still
tries to call mnt_release_group_id(), which eventually hits a kernel
warning at ida_remove() spewing a message like:
  ida_remove called for id=0 which is not allocated.

This patch fixes the bug simply checking the group id in the caller.

Reported-by: Cristian Rodríguez <crrodriguez@opensuse.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

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