On Sat, Nov 13, 2010 at 6:44 PM, Will Newton <will.new...@gmail.com> wrote:
> unregister_winch should use list_for_each_safe, as it can
> potentially delete from the list.
>
> Signed-off-by: Will Newton <will.new...@gmail.com>
> ---
> arch/um/drivers/line.c | 4 ++--
> 1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
> index 7f7338c..5f12fef 100644
> --- a/arch/um/drivers/line.c
> +++ b/arch/um/drivers/line.c
> @@ -820,12 +820,12 @@ void register_winch_irq(int fd, int tty_fd, int
> pid, struct tty_struct *tty,
>
> static void unregister_winch(struct tty_struct *tty)
> {
> - struct list_head *ele;
> + struct list_head *ele, *next;
> struct winch *winch;
>
> spin_lock(&winch_handler_lock);
>
> - list_for_each(ele, &winch_handlers) {
> + list_for_each_safe(ele, next, &winch_handlers) {
> winch = list_entry(ele, struct winch, list);
> if (winch->tty == tty) {
> free_winch(winch, 1);
> --
> 1.7.0.4
>
Please send your patches to akpm.
--
Thanks,
//richard
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