tree 7159c5fe581a53402f418c5b4b5e670140a3d340
parent a8b624eae7c358d67a35e847bd25c29f846046f9
author Sergei Trofimovich <slyfox@gentoo.org> 1314530604 +0300
committer Chris Mason <chris.mason@oracle.com> 1319548739 -0400

btrfsck: decode error properly

check_mounted() returns kernel-style negative errors.
Patch drops sign for strerror().

Before the patch:
check_mounted(): Could not open /dev/sdb2
Could not check mount status: Unknown error 18446744073709551603

After the patch:
check_mounted(): Could not open /dev/sdb2
Could not check mount status: Permission denied

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>