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parport: Use list_for_each() helper

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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: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20231016133135.1203643-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andy Shevchenko 2023-10-16 16:31:34 +03:00 committed by Greg Kroah-Hartman
parent 8d8ae17eb0
commit b8cb855d1b
1 changed files with 4 additions and 2 deletions
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6
drivers/parport/share.c
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@ -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;