Mikulas Patocka 01d6e08711 affs: fix remount failure when there are no options changed ... Commit c8f33d0bec ("affs: kstrdup() memory handling") checks if the kstrdup function returns NULL due to out-of-memory condition. However, if we are remounting a filesystem with no change to filesystem-specific options, the parameter data is NULL. In this case, kstrdup returns NULL (because it was passed NULL parameter), although no out of memory condition exists. The mount syscall then fails with ENOMEM. This patch fixes the bug. We fail with ENOMEM only if data is non-NULL. The patch also changes the call to replace_mount_options - if we didn't pass any filesystem-specific options, we don't call replace_mount_options (thus we don't erase existing reported options). Fixes: c8f33d0bec ("affs: kstrdup() memory handling") Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org # v4.1+ Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2016-05-28 16:50:24 -07:00
..
Changes	remove obsolete references to powertweak	2013-11-27 20:34:32 -08:00
Kconfig	fs/affs: remove depends on CONFIG_EXPERIMENTAL	2013-01-21 14:39:04 -08:00
Makefile	fs: change to new flag variable	2011-03-17 14:02:57 +01:00
affs.h	fs:affs:Replace time_t with time64_t	2016-01-09 02:59:19 -05:00
amigaffs.c	fs:affs:Replace time_t with time64_t	2016-01-09 02:59:19 -05:00
bitmap.c	fs/affs/bitmap.c: remove unnecessary return	2015-02-17 14:34:52 -08:00
dir.c	simple local filesystems: switch to ->iterate_shared()	2016-05-02 19:49:32 -04:00
file.c	direct-io: eliminate the offset argument to ->direct_IO	2016-05-01 19:58:39 -04:00
inode.c	don't put symlink bodies in pagecache into highmem	2015-12-08 22:41:36 -05:00
namei.c	don't put symlink bodies in pagecache into highmem	2015-12-08 22:41:36 -05:00
super.c	affs: fix remount failure when there are no options changed	2016-05-28 16:50:24 -07:00
symlink.c	switch ->get_link() to delayed_call, kill ->put_link()	2015-12-30 13:01:03 -05:00