Messages in this thread Patch in this message | | | Date | Sat, 8 Feb 2014 10:14:10 +0800 | From | Li Zefan <> | Subject | [PATCH 1/3] jffs2: fix unbalanced locking |
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This was found by our internal debugging feature on runtime, but this bug won't lead to deadlock, as the structure that this lock is embedded in is freed on error.
Cc: <stable@vger.kernel.org> Signed-off-by: Li Zefan <lizefan@huawei.com> --- fs/jffs2/readinode.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c index 386303d..8261021 100644 --- a/fs/jffs2/readinode.c +++ b/fs/jffs2/readinode.c @@ -1143,6 +1143,7 @@ static int jffs2_do_read_inode_internal(struct jffs2_sb_info *c, JFFS2_ERROR("cannot read nodes for ino %u, returned error is %d\n", f->inocache->ino, ret); if (f->inocache->state == INO_STATE_READING) jffs2_set_inocache_state(c, f->inocache, INO_STATE_CHECKEDABSENT); + mutex_unlock(&f->sem); return ret; } @@ -1159,6 +1160,7 @@ static int jffs2_do_read_inode_internal(struct jffs2_sb_info *c, jffs2_free_tmp_dnode_info(rii.mdata_tn); rii.mdata_tn = NULL; } + mutex_unlock(&f->sem); return ret; } @@ -1183,6 +1185,7 @@ static int jffs2_do_read_inode_internal(struct jffs2_sb_info *c, if (!rii.fds) { if (f->inocache->state == INO_STATE_READING) jffs2_set_inocache_state(c, f->inocache, INO_STATE_CHECKEDABSENT); + mutex_unlock(&f->sem); return -EIO; } JFFS2_NOTICE("but it has children so we fake some modes for it\n"); -- 1.8.0.2
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