[ALSA] Fix synchronize_irq() bugs, redundancies
free_irq() calls synchronize_irq() for you, so there is no need for
drivers to manually do the same thing (again). Thus, calls where
sync-irq immediately precedes free-irq can be simplified.
However, during this audit several bugs were noticed, where free-irq is
preceded by a "irq >= 0" check... but the sync-irq call is not covered
by the same check.
So, where sync-irq could not be eliminated completely, the missing check
was added.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/ice1712/ice1712.c b/sound/pci/ice1712/ice1712.c
index 38e93ca..29d449d 100644
--- a/sound/pci/ice1712/ice1712.c
+++ b/sound/pci/ice1712/ice1712.c
@@ -2490,10 +2490,9 @@
outb(0xff, ICEREG(ice, IRQMASK));
/* --- */
__hw_end:
- if (ice->irq >= 0) {
- synchronize_irq(ice->irq);
+ if (ice->irq >= 0)
free_irq(ice->irq, ice);
- }
+
if (ice->port)
pci_release_regions(ice->pci);
snd_ice1712_akm4xxx_free(ice);