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f2fs: fix to return 0 if err == -ENOENT in f2fs_readdir

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Commit 57b62d29ad ("f2fs: fix to report
error in f2fs_readdir") causes f2fs_readdir to return -ENOENT when
get_lock_data_page returns -ENOENT. However, the original logic is to
continue when get_lock_data_page returns -ENOENT, but it forgets to
reset err to 0.

This will cause getdents64 incorretly return -ENOENT when lastdirent is
NULL in getdents64. This will lead to a wrong return value for syscall
caller.

Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Yunlong Song 2016-04-27 20:32:37 +08:00 committed by Jaegeuk Kim
parent da011cc0da
commit fe216c7a0f
1 changed files with 1 additions and 0 deletions
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1
fs/f2fs/dir.c
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@ -888,6 +888,7 @@ static int f2fs_readdir(struct file *file, struct dir_context *ctx)
kunmap(dentry_page);
f2fs_put_page(dentry_page, 1);
}
err = 0;
out:
fscrypt_fname_free_buffer(&fstr);
return err;