From: David Sterba <dsterba@suse.cz>
Date: Tue, 19 Apr 2011 14:45:00 +0000 (+0200)
Subject: btrfs: fix dereference before check
X-Git-Tag: v3.0-rc1~38^2~9^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4891aca2dac612a2f21a3278d9906ade13b55788;p=pandora-kernel.git

btrfs: fix dereference before check

The superblock's ->s_fs_info is properly set in btrfs_fill_super, after
a call to open_ctree, which derefereces it before check. Although
tree_root is set via btrfs_set_super, let's be defensive and leave the
check in place.

Signed-off-by: David Sterba <dsterba@suse.cz>
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