[PATCH 3.16 275/357] fs/notify: dont show f_handle if exportfs_encode_inode_fh failed

From: Greg Kroah-Hartman
Date: Fri Oct 03 2014 - 17:55:31 EST


3.16-stable review patch. If anyone has any objections, please let me know.

------------------

From: Andrey Vagin <avagin@xxxxxxxxxx>

commit 7e8824816bda16bb11ff5ff1e1212d642e57b0b3 upstream.

Currently we handle only ENOSPC. In case of other errors the file_handle
variable isn't filled properly and we will show a part of stack.

Signed-off-by: Andrey Vagin <avagin@xxxxxxxxxx>
Acked-by: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
fs/notify/fdinfo.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/notify/fdinfo.c
+++ b/fs/notify/fdinfo.c
@@ -50,7 +50,7 @@ static int show_mark_fhandle(struct seq_
size = f.handle.handle_bytes >> 2;

ret = exportfs_encode_inode_fh(inode, (struct fid *)f.handle.f_handle, &size, 0);
- if ((ret == FILEID_INVALID) || (ret == -ENOSPC)) {
+ if ((ret == FILEID_INVALID) || (ret < 0)) {
WARN_ONCE(1, "Can't encode file handler for inotify: %d\n", ret);
return 0;
}


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