Commit b8cb855d authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Greg Kroah-Hartman
Browse files

parport: Use list_for_each() helper 



Convert hard to read custom code to list_for_each().
No functional changes intended.

Note, we may not use list_for_each_entry() as at the end of the list
the iterator will point to an invalid entry and may not be dereferenced.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20231016133135.1203643-3-andriy.shevchenko@linux.intel.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8d8ae17e

drivers/parport/share.c

+4 −2
Original line number Diff line number Diff line
@@ -469,9 +469,11 @@ struct parport *parport_register_port(unsigned long base, int irq, int dma, 
	/* Search for the lowest free parport number. */



	spin_lock(&full_list_lock);

	for (l = all_ports.next, num = 0; l != &all_ports; l = l->next, num++) {

	num = 0;

	list_for_each(l, &all_ports) {

		struct parport *p = list_entry(l, struct parport, full_list);

		if (p->number != num)



		if (p->number != num++)

			break;

	}

	tmp->portnum = tmp->number = num;