From: Andrew Morton ERROR: use tabs not spaces #29: FILE: kernel/lockdep.c:1524: +^I ^I$ Your patch has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. Cc: Cc: Gregory Haskins Cc: Ingo Molnar Cc: Peter Zijlstra Signed-off-by: Andrew Morton --- diff -puN kernel/lockdep.c~lockdep-fix-mismatched-lockdep_depth-curr_chain_hash-checkpatch-fixes kernel/lockdep.c --- a/kernel/lockdep.c~lockdep-fix-mismatched-lockdep_depth-curr_chain_hash-checkpatch-fixes +++ a/kernel/lockdep.c @@ -1521,7 +1521,7 @@ cache_hit: } static int validate_chain(struct task_struct *curr, struct lockdep_map *lock, - struct held_lock *hlock, int chain_head, u64 chain_key) + struct held_lock *hlock, int chain_head, u64 chain_key) { /* * Trylock needs to maintain the stack of held locks, but it _