Mathias Krause 12c20c65d0 eventfs: Don't return NULL in eventfs_create_dir() ... Commit 77a06c33a2 ("eventfs: Test for ei->is_freed when accessing ei->dentry") added another check, testing if the parent was freed after we released the mutex. If so, the function returns NULL. However, all callers expect it to either return a valid pointer or an error pointer, at least since commit 5264a2f4bb ("tracing: Fix a NULL vs IS_ERR() bug in event_subsystem_dir()"). Returning NULL will therefore fail the error condition check in the caller. Fix this by substituting the NULL return value with a fitting error pointer. Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: stable@vger.kernel.org Fixes: 77a06c33a2 ("eventfs: Test for ei->is_freed when accessing ei->dentry") Link: https://lore.kernel.org/20240723122522.2724-1-minipli@grsecurity.net Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Ajay Kaher <ajay.kaher@broadcom.com> Signed-off-by: Mathias Krause <minipli@grsecurity.net> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>		2024-08-07 19:28:31 -04:00
..
event_inode.c	eventfs: Don't return NULL in eventfs_create_dir()	2024-08-07 19:28:31 -04:00
inode.c	tracefs: Fix inode allocation	2024-08-07 18:49:06 -04:00
internal.h	eventfs: Do not differentiate the toplevel events directory	2024-05-04 04:25:37 -04:00
Makefile	eventfs: Implement eventfs dir creation functions	2023-07-30 18:13:33 -04:00