From 834e74759a473f8101a273e843d1edec2778801d Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Sat, 29 May 2010 09:48:35 +0000
Subject: [PATCH] Btrfs: handle ERR_PTR from posix_acl_from_xattr()

posix_acl_from_xattr() returns both ERR_PTRs and null, but it's OK to
pass null values to set_cached_acl()

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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