diff options
author | Jeff Garzik <jgarzik@redhat.com> | 2008-04-22 11:50:34 (GMT) |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2008-04-24 10:00:40 (GMT) |
commit | f000fd80937c0d94c67f9f3e7026f1fbc8ef8873 (patch) | |
tree | a1364921df5ed78b387a767787ea945031b5b641 /sound/pci | |
parent | 8a87c9cf999542db846c3ab93c1065d446427f37 (diff) | |
download | linux-f000fd80937c0d94c67f9f3e7026f1fbc8ef8873.tar.xz |
[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')
-rw-r--r-- | sound/pci/ad1889.c | 2 | ||||
-rw-r--r-- | sound/pci/ali5451/ali5451.c | 4 | ||||
-rw-r--r-- | sound/pci/atiixp.c | 2 | ||||
-rw-r--r-- | sound/pci/atiixp_modem.c | 2 | ||||
-rw-r--r-- | sound/pci/au88x0/au88x0.c | 2 | ||||
-rw-r--r-- | sound/pci/azt3328.c | 3 | ||||
-rw-r--r-- | sound/pci/cmipci.c | 2 | ||||
-rw-r--r-- | sound/pci/ens1370.c | 3 | ||||
-rw-r--r-- | sound/pci/es1938.c | 5 | ||||
-rw-r--r-- | sound/pci/es1968.c | 3 | ||||
-rw-r--r-- | sound/pci/hda/hda_intel.c | 5 | ||||
-rw-r--r-- | sound/pci/ice1712/ice1712.c | 5 | ||||
-rw-r--r-- | sound/pci/ice1712/ice1724.c | 4 | ||||
-rw-r--r-- | sound/pci/intel8x0.c | 3 | ||||
-rw-r--r-- | sound/pci/intel8x0m.c | 3 | ||||
-rw-r--r-- | sound/pci/maestro3.c | 4 | ||||
-rw-r--r-- | sound/pci/oxygen/oxygen_lib.c | 4 | ||||
-rw-r--r-- | sound/pci/sis7019.c | 1 | ||||
-rw-r--r-- | sound/pci/via82xx.c | 2 | ||||
-rw-r--r-- | sound/pci/via82xx_modem.c | 2 |
20 files changed, 21 insertions, 40 deletions
diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c index 1edb644..39ec55b 100644 --- a/sound/pci/ad1889.c +++ b/sound/pci/ad1889.c @@ -854,8 +854,6 @@ snd_ad1889_free(struct snd_ad1889 *chip) spin_unlock_irq(&chip->lock); - synchronize_irq(chip->irq); - if (chip->irq >= 0) free_irq(chip->irq, chip); diff --git a/sound/pci/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c index fc04d3d..1a0fd65 100644 --- a/sound/pci/ali5451/ali5451.c +++ b/sound/pci/ali5451/ali5451.c @@ -2047,10 +2047,8 @@ static int snd_ali_free(struct snd_ali * codec) { if (codec->hw_initialized) snd_ali_disable_address_interrupt(codec); - if (codec->irq >= 0) { - synchronize_irq(codec->irq); + if (codec->irq >= 0) free_irq(codec->irq, codec); - } if (codec->port) pci_release_regions(codec->pci); pci_disable_device(codec->pci); diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c index 4594186..457228f 100644 --- a/sound/pci/atiixp.c +++ b/sound/pci/atiixp.c @@ -1553,7 +1553,7 @@ static int snd_atiixp_free(struct atiixp *chip) if (chip->irq < 0) goto __hw_end; snd_atiixp_chip_stop(chip); - synchronize_irq(chip->irq); + __hw_end: if (chip->irq >= 0) free_irq(chip->irq, chip); diff --git a/sound/pci/atiixp_modem.c b/sound/pci/atiixp_modem.c index a67a869..d457a32 100644 --- a/sound/pci/atiixp_modem.c +++ b/sound/pci/atiixp_modem.c @@ -1197,7 +1197,7 @@ static int snd_atiixp_free(struct atiixp_modem *chip) if (chip->irq < 0) goto __hw_end; snd_atiixp_chip_stop(chip); - synchronize_irq(chip->irq); + __hw_end: if (chip->irq >= 0) free_irq(chip->irq, chip); diff --git a/sound/pci/au88x0/au88x0.c b/sound/pci/au88x0/au88x0.c index 26819e2..68368e4 100644 --- a/sound/pci/au88x0/au88x0.c +++ b/sound/pci/au88x0/au88x0.c @@ -126,7 +126,6 @@ static int snd_vortex_dev_free(struct snd_device *device) vortex_gameport_unregister(vortex); vortex_core_shutdown(vortex); // Take down PCI interface. - synchronize_irq(vortex->irq); free_irq(vortex->irq, vortex); iounmap(vortex->mmio); pci_release_regions(vortex->pci_dev); @@ -220,7 +219,6 @@ snd_vortex_create(struct snd_card *card, struct pci_dev *pci, vortex_t ** rchip) return 0; alloc_out: - synchronize_irq(chip->irq); free_irq(chip->irq, chip); irq_out: vortex_core_shutdown(chip); diff --git a/sound/pci/azt3328.c b/sound/pci/azt3328.c index be87d31..5f63af6 100644 --- a/sound/pci/azt3328.c +++ b/sound/pci/azt3328.c @@ -1514,7 +1514,8 @@ snd_azf3328_free(struct snd_azf3328 *chip) /* well, at least we know how to disable the timer IRQ */ snd_azf3328_codec_outb(chip, IDX_IO_TIMER_VALUE + 3, 0x00); - synchronize_irq(chip->irq); + if (chip->irq >= 0) + synchronize_irq(chip->irq); __end_hw: snd_azf3328_free_joystick(chip); if (chip->irq >= 0) diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c index 4074584..9971b5b 100644 --- a/sound/pci/cmipci.c +++ b/sound/pci/cmipci.c @@ -2933,8 +2933,6 @@ static int snd_cmipci_free(struct cmipci *cm) /* reset mixer */ snd_cmipci_mixer_write(cm, 0, 0); - synchronize_irq(cm->irq); - free_irq(cm->irq, cm); } diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c index 52fae4a..fbf1124 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 diff --git a/sound/pci/es1938.c b/sound/pci/es1938.c index 1a314fa..84fac1f 100644 --- a/sound/pci/es1938.c +++ b/sound/pci/es1938.c @@ -1488,7 +1488,6 @@ static int es1938_suspend(struct pci_dev *pci, pm_message_t state) outb(0x00, SLIO_REG(chip, IRQCONTROL)); /* disable irqs */ if (chip->irq >= 0) { - synchronize_irq(chip->irq); free_irq(chip->irq, chip); chip->irq = -1; } @@ -1578,10 +1577,8 @@ static int snd_es1938_free(struct es1938 *chip) snd_es1938_free_gameport(chip); - if (chip->irq >= 0) { - synchronize_irq(chip->irq); + if (chip->irq >= 0) free_irq(chip->irq, chip); - } pci_release_regions(chip->pci); pci_disable_device(chip->pci); kfree(chip); diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c index 1383798..1bf298d 100644 --- a/sound/pci/es1968.c +++ b/sound/pci/es1968.c @@ -2475,7 +2475,8 @@ static inline void snd_es1968_free_gameport(struct es1968 *chip) { } static int snd_es1968_free(struct es1968 *chip) { if (chip->io_port) { - synchronize_irq(chip->irq); + if (chip->irq >= 0) + synchronize_irq(chip->irq); outw(1, chip->io_port + 0x04); /* clear WP interrupts */ outw(0, chip->io_port + ESM_PORT_HOST_IRQ); /* disable IRQ */ } diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index bc3867e..b3a618e 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -1682,7 +1682,6 @@ static int azx_suspend(struct pci_dev *pci, pm_message_t state) snd_hda_suspend(chip->bus, state); azx_stop_chip(chip); if (chip->irq >= 0) { - synchronize_irq(chip->irq); free_irq(chip->irq, chip); chip->irq = -1; } @@ -1738,10 +1737,8 @@ static int azx_free(struct azx *chip) azx_stop_chip(chip); } - if (chip->irq >= 0) { - synchronize_irq(chip->irq); + if (chip->irq >= 0) free_irq(chip->irq, (void*)chip); - } if (chip->msi) pci_disable_msi(chip->pci); if (chip->remap_addr) 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 @@ static int snd_ice1712_free(struct snd_ice1712 *ice) 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); diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c index 6b15e1c..13ea94f 100644 --- a/sound/pci/ice1712/ice1724.c +++ b/sound/pci/ice1712/ice1724.c @@ -2153,10 +2153,8 @@ static int snd_vt1724_free(struct snd_ice1712 *ice) outb(0xff, ICEREG1724(ice, IRQMASK)); /* --- */ __hw_end: - if (ice->irq >= 0) { - synchronize_irq(ice->irq); + if (ice->irq >= 0) free_irq(ice->irq, ice); - } pci_release_regions(ice->pci); snd_ice1712_akm4xxx_free(ice); pci_disable_device(ice->pci); diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c index 47485af..048d99e 100644 --- a/sound/pci/intel8x0.c +++ b/sound/pci/intel8x0.c @@ -2468,7 +2468,7 @@ static int snd_intel8x0_free(struct intel8x0 *chip) pci_write_config_dword(chip->pci, 0x4c, val); } /* --- */ - synchronize_irq(chip->irq); + __hw_end: if (chip->irq >= 0) free_irq(chip->irq, chip); @@ -2517,7 +2517,6 @@ static int intel8x0_suspend(struct pci_dev *pci, pm_message_t state) chip->sdm_saved = igetbyte(chip, ICHREG(SDM)); if (chip->irq >= 0) { - synchronize_irq(chip->irq); free_irq(chip->irq, chip); chip->irq = -1; } diff --git a/sound/pci/intel8x0m.c b/sound/pci/intel8x0m.c index cadda8d..15db810 100644 --- a/sound/pci/intel8x0m.c +++ b/sound/pci/intel8x0m.c @@ -986,7 +986,8 @@ static int snd_intel8x0_free(struct intel8x0m *chip) for (i = 0; i < chip->bdbars_count; i++) iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS); /* --- */ - synchronize_irq(chip->irq); + if (chip->irq >= 0) + synchronize_irq(chip->irq); __hw_end: if (chip->bdbars.area) snd_dma_free_pages(&chip->bdbars); diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c index a753dae..a536c59 100644 --- a/sound/pci/maestro3.c +++ b/sound/pci/maestro3.c @@ -2542,10 +2542,8 @@ static int snd_m3_free(struct snd_m3 *chip) vfree(chip->suspend_mem); #endif - if (chip->irq >= 0) { - synchronize_irq(chip->irq); + if (chip->irq >= 0) free_irq(chip->irq, chip); - } if (chip->iobase) pci_release_regions(chip->pci); diff --git a/sound/pci/oxygen/oxygen_lib.c b/sound/pci/oxygen/oxygen_lib.c index f84f6a12..897697d 100644 --- a/sound/pci/oxygen/oxygen_lib.c +++ b/sound/pci/oxygen/oxygen_lib.c @@ -410,10 +410,8 @@ static void oxygen_card_free(struct snd_card *card) oxygen_write16(chip, OXYGEN_DMA_STATUS, 0); oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0); spin_unlock_irq(&chip->reg_lock); - if (chip->irq >= 0) { + if (chip->irq >= 0) free_irq(chip->irq, chip); - synchronize_irq(chip->irq); - } flush_scheduled_work(); chip->model->cleanup(chip); mutex_destroy(&chip->mutex); diff --git a/sound/pci/sis7019.c b/sound/pci/sis7019.c index 742f118..df2007e 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; } diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c index a756be6..b585cc3 100644 --- a/sound/pci/via82xx.c +++ b/sound/pci/via82xx.c @@ -2236,7 +2236,7 @@ static int snd_via82xx_free(struct via82xx *chip) /* disable interrupts */ for (i = 0; i < chip->num_devs; i++) snd_via82xx_channel_reset(chip, &chip->devs[i]); - synchronize_irq(chip->irq); + if (chip->irq >= 0) free_irq(chip->irq, chip); __end_hw: diff --git a/sound/pci/via82xx_modem.c b/sound/pci/via82xx_modem.c index f5df1c7..31f64ee 100644 --- a/sound/pci/via82xx_modem.c +++ b/sound/pci/via82xx_modem.c @@ -1075,7 +1075,7 @@ static int snd_via82xx_free(struct via82xx_modem *chip) /* disable interrupts */ for (i = 0; i < chip->num_devs; i++) snd_via82xx_channel_reset(chip, &chip->devs[i]); - synchronize_irq(chip->irq); + __end_hw: if (chip->irq >= 0) free_irq(chip->irq, chip); |