From b02da32b613f989b73c88113db16ab47de11a3fd Mon Sep 17 00:00:00 2001 From: Jakob Koschel Date: Fri, 29 Apr 2022 14:37:57 -0700 Subject: ocfs2: remove usage of list iterator variable after the loop body To move the list iterator variable into the list_for_each_entry_*() macro in the future it should be avoided to use the list iterator variable after the loop body. To *never* use the list iterator variable after the loop it was concluded to use a separate iterator variable [1]. Link: https://lore.kernel.org/all/CAHk-=wgRr_D8CB-D9Kg-c=EHreAsk5SqXPwr9Y7k9sA6cWXJ6w@mail.gmail.com/ Link: https://lkml.kernel.org/r/20220322105014.3626194-1-jakobkoschel@gmail.com Signed-off-by: Jakob Koschel Reviewed-by: Joseph Qi Cc: Mark Fasheh Cc: Joel Becker Cc: Junxiao Bi Cc: Changwei Ge Cc: Gang He Cc: Jun Piao Signed-off-by: Andrew Morton --- fs/ocfs2/dlm/dlmdebug.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'fs/ocfs2') diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c index d442cf5dda8a..be5e9ed7da8d 100644 --- a/fs/ocfs2/dlm/dlmdebug.c +++ b/fs/ocfs2/dlm/dlmdebug.c @@ -541,7 +541,7 @@ static void *lockres_seq_start(struct seq_file *m, loff_t *pos) struct debug_lockres *dl = m->private; struct dlm_ctxt *dlm = dl->dl_ctxt; struct dlm_lock_resource *oldres = dl->dl_res; - struct dlm_lock_resource *res = NULL; + struct dlm_lock_resource *res = NULL, *iter; struct list_head *track_list; spin_lock(&dlm->track_lock); @@ -556,11 +556,11 @@ static void *lockres_seq_start(struct seq_file *m, loff_t *pos) } } - list_for_each_entry(res, track_list, tracking) { - if (&res->tracking == &dlm->tracking_list) - res = NULL; - else - dlm_lockres_get(res); + list_for_each_entry(iter, track_list, tracking) { + if (&iter->tracking != &dlm->tracking_list) { + dlm_lockres_get(iter); + res = iter; + } break; } spin_unlock(&dlm->track_lock); -- cgit v1.2.3