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authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-26 09:03:36 +1000
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-26 09:03:36 +1000
commit3af03655e885ba7f48ca6318e231a7086a51082e (patch)
tree8f7505063593208454184fb5608eadf80f78d122 /fs
parent01ed875a12eacd5ece370b20ccf8f51543feb172 (diff)
parent0ca7a5b9ac5d301845dd6382ff25a699b6263a81 (diff)
downloadlinux-3af03655e885ba7f48ca6318e231a7086a51082e.tar.bz2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2: nilfs2: fix crash after one superblock became unavailable
Diffstat (limited to 'fs')
-rw-r--r--fs/nilfs2/super.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 0994f6a76c07..58fd707174e1 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -704,7 +704,8 @@ skip_mount_setup:
sbp[0]->s_state =
cpu_to_le16(le16_to_cpu(sbp[0]->s_state) & ~NILFS_VALID_FS);
/* synchronize sbp[1] with sbp[0] */
- memcpy(sbp[1], sbp[0], nilfs->ns_sbsize);
+ if (sbp[1])
+ memcpy(sbp[1], sbp[0], nilfs->ns_sbsize);
return nilfs_commit_super(sbi, NILFS_SB_COMMIT_ALL);
}