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| author | Jeff Garzik <jgarzik@redhat.com> | 2008-04-22 13:50:34 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2008-04-24 12:00:40 +0200 |
| commit | f000fd80937c0d94c67f9f3e7026f1fbc8ef8873 (patch) | |
| tree | a1364921df5ed78b387a767787ea945031b5b641 /sound/pci/ens1370.c | |
| parent | [ALSA] Audiophile 192: Fix ad converter initialization (diff) | |
| download | linux-f000fd80937c0d94c67f9f3e7026f1fbc8ef8873.tar.xz linux-f000fd80937c0d94c67f9f3e7026f1fbc8ef8873.zip | |
[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>
Diffstat (limited to 'sound/pci/ens1370.c')
| -rw-r--r-- | sound/pci/ens1370.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c index 52fae4a7cfdd..fbf1124f7c79 100644 --- a/sound/pci/ens1370.c +++ b/sound/pci/ens1370.c @@ -1910,7 +1910,8 @@ static int snd_ensoniq_free(struct ensoniq *ensoniq) outl(0, ES_REG(ensoniq, CONTROL)); /* switch everything off */ outl(0, ES_REG(ensoniq, SERIAL)); /* clear serial interface */ #endif - synchronize_irq(ensoniq->irq); + if (ensoniq->irq >= 0) + synchronize_irq(ensoniq->irq); pci_set_power_state(ensoniq->pci, 3); __hw_end: #ifdef CHIP1370 |