[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>

1 files changed, 0 insertions, 1 deletions

diff --git a/sound/pci/sis7019.c b/sound/pci/sis7019.c
index 742f1180c39e..df2007e3be7c 100644
--- a/sound/pci/sis7019.c
+++ b/sound/pci/sis7019.c
@@ -1194,7 +1194,6 @@ static int sis_suspend(struct pci_dev *pci, pm_message_t state)
         /* snd_pcm_suspend_all() stopped all channels, so we're quiescent.
          */
         if (sis->irq >= 0) {
-                synchronize_irq(sis->irq);
                 free_irq(sis->irq, sis);
                 sis->irq = -1;
         }