linux-stable/fs/notify/fanotify
Amir Goldstein 7cdafe6cc4 exportfs: check for error return value from exportfs_encode_*()
The exportfs_encode_*() helpers call the filesystem ->encode_fh()
method which returns a signed int.

All the in-tree implementations of ->encode_fh() return a positive
integer and FILEID_INVALID (255) for error.

Fortify the callers for possible future ->encode_fh() implementation
that will return a negative error value.

name_to_handle_at() would propagate the returned error to the users
if filesystem ->encode_fh() method returns an error.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/linux-fsdevel/ca02955f-1877-4fde-b453-3c1d22794740@kili.mountain/
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Message-Id: <20230524154825.881414-1-amir73il@gmail.com>
2023-05-25 13:17:04 +02:00
..
fanotify_user.c fanotify: support reporting non-decodeable file handles 2023-05-25 13:17:04 +02:00
fanotify.c exportfs: check for error return value from exportfs_encode_*() 2023-05-25 13:17:04 +02:00
fanotify.h fanotify: define struct members to hold response decision context 2023-02-07 12:53:53 +01:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00