From a00052a296e54205cf238c75bd98d17d5d02a6db Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Fri, 28 Oct 2016 11:49:03 +0200 Subject: [PATCH] ubifs: Fix regression in ubifs_readdir() Commit c83ed4c9dbb35 ("ubifs: Abort readdir upon error") broke overlayfs support because the fix exposed an internal error code to VFS. Reported-by: Peter Rosin Tested-by: Peter Rosin Reported-by: Ralph Sennhauser Tested-by: Ralph Sennhauser Fixes: c83ed4c9dbb35 ("ubifs: Abort readdir upon error") Cc: stable@vger.kernel.org Signed-off-by: Richard Weinberger --- fs/ubifs/dir.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c index bd4a5e8ce441..ca16c5d7bab1 100644 --- a/fs/ubifs/dir.c +++ b/fs/ubifs/dir.c @@ -543,6 +543,14 @@ out: if (err != -ENOENT) ubifs_err(c, "cannot find next direntry, error %d", err); + else + /* + * -ENOENT is a non-fatal error in this context, the TNC uses + * it to indicate that the cursor moved past the current directory + * and readdir() has to stop. + */ + err = 0; + /* 2 is a special value indicating that there are no more direntries */ ctx->pos = 2; -- 2.20.1