ide: ide_unregister() warm-plug bugfix
Fix ide_unregister() to work for ports with no devices attached to them.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 2460777..b31359c 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -315,13 +315,14 @@
BUG_ON(in_interrupt());
BUG_ON(irqs_disabled());
- mutex_lock(&ide_cfg_mtx);
- spin_lock_irq(&ide_lock);
- if (!hwif->present)
- goto abort;
- __ide_port_unregister_devices(hwif);
- hwif->present = 0;
+ mutex_lock(&ide_cfg_mtx);
+
+ spin_lock_irq(&ide_lock);
+ if (hwif->present) {
+ __ide_port_unregister_devices(hwif);
+ hwif->present = 0;
+ }
spin_unlock_irq(&ide_lock);
ide_proc_unregister_port(hwif);
@@ -359,7 +360,6 @@
/* restore hwif data to pristine status */
ide_init_port_data(hwif, hwif->index);
-abort:
spin_unlock_irq(&ide_lock);
mutex_unlock(&ide_cfg_mtx);
}