drm: rcar-du: Add procedure of memory width update

[platform/adaptation/renesas_rcar/renesas_kernel.git] / fs / eventpoll.c

diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index af90312..f50d79e 100644 (file)
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -910,7 +910,7 @@ static const struct file_operations eventpoll_fops = {
 void eventpoll_release_file(struct file *file)
 {
        struct eventpoll *ep;
-       struct epitem *epi;
+       struct epitem *epi, *next;
 
        /*
         * We don't want to get "file->f_lock" because it is not
@@ -926,7 +926,7 @@ void eventpoll_release_file(struct file *file)
         * Besides, ep_remove() acquires the lock, so we can't hold it here.
         */
        mutex_lock(&epmutex);
-       list_for_each_entry_rcu(epi, &file->f_ep_links, fllink) {
+       list_for_each_entry_safe(epi, next, &file->f_ep_links, fllink) {
                ep = epi->ep;
                mutex_lock_nested(&ep->mtx, 0);
                ep_remove(ep, epi);
@@ -1852,7 +1852,8 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd,
                goto error_tgt_fput;
 
        /* Check if EPOLLWAKEUP is allowed */
-       ep_take_care_of_epollwakeup(&epds);
+       if (ep_op_has_event(op))
+               ep_take_care_of_epollwakeup(&epds);
 
        /*
         * We have to check that the file structure underneath the file descriptor