diff options
| -rw-r--r-- | sound/isa/gus/gus_irq.c | 18 | ||||
| -rw-r--r-- | sound/isa/gus/gus_main.c | 16 |
2 files changed, 20 insertions, 14 deletions
diff --git a/sound/isa/gus/gus_irq.c b/sound/isa/gus/gus_irq.c index a0430b338d67..cd9a6f1c99e6 100644 --- a/sound/isa/gus/gus_irq.c +++ b/sound/isa/gus/gus_irq.c @@ -45,11 +45,13 @@ __again: // snd_printk("IRQ: status = 0x%x\n", status); if (status & 0x02) { STAT_ADD(gus->gf1.interrupt_stat_midi_in); - gus->gf1.interrupt_handler_midi_in(gus); + if (gus->gf1.interrupt_handler_midi_in) + gus->gf1.interrupt_handler_midi_in(gus); } if (status & 0x01) { STAT_ADD(gus->gf1.interrupt_stat_midi_out); - gus->gf1.interrupt_handler_midi_out(gus); + if (gus->gf1.interrupt_handler_midi_out) + gus->gf1.interrupt_handler_midi_out(gus); } if (status & (0x20 | 0x40)) { unsigned int already, _current_; @@ -85,20 +87,24 @@ __again: } if (status & 0x04) { STAT_ADD(gus->gf1.interrupt_stat_timer1); - gus->gf1.interrupt_handler_timer1(gus); + if (gus->gf1.interrupt_handler_timer1) + gus->gf1.interrupt_handler_timer1(gus); } if (status & 0x08) { STAT_ADD(gus->gf1.interrupt_stat_timer2); - gus->gf1.interrupt_handler_timer2(gus); + if (gus->gf1.interrupt_handler_timer2) + gus->gf1.interrupt_handler_timer2(gus); } if (status & 0x80) { if (snd_gf1_i_look8(gus, SNDRV_GF1_GB_DRAM_DMA_CONTROL) & 0x40) { STAT_ADD(gus->gf1.interrupt_stat_dma_write); - gus->gf1.interrupt_handler_dma_write(gus); + if (gus->gf1.interrupt_handler_dma_write) + gus->gf1.interrupt_handler_dma_write(gus); } if (snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL) & 0x40) { STAT_ADD(gus->gf1.interrupt_stat_dma_read); - gus->gf1.interrupt_handler_dma_read(gus); + if (gus->gf1.interrupt_handler_dma_read) + gus->gf1.interrupt_handler_dma_read(gus); } } if (--loop > 0) diff --git a/sound/isa/gus/gus_main.c b/sound/isa/gus/gus_main.c index ada9209a93a6..b14d5d6d9a32 100644 --- a/sound/isa/gus/gus_main.c +++ b/sound/isa/gus/gus_main.c @@ -154,6 +154,14 @@ int snd_gus_create(struct snd_card *card, gus = kzalloc(sizeof(*gus), GFP_KERNEL); if (gus == NULL) return -ENOMEM; + spin_lock_init(&gus->reg_lock); + spin_lock_init(&gus->voice_alloc); + spin_lock_init(&gus->active_voice_lock); + spin_lock_init(&gus->event_lock); + spin_lock_init(&gus->dma_lock); + spin_lock_init(&gus->pcm_volume_level_lock); + spin_lock_init(&gus->uart_cmd_lock); + mutex_init(&gus->dma_mutex); gus->gf1.irq = -1; gus->gf1.dma1 = -1; gus->gf1.dma2 = -1; @@ -218,14 +226,6 @@ int snd_gus_create(struct snd_card *card, gus->gf1.pcm_channels = pcm_channels; gus->gf1.volume_ramp = 25; gus->gf1.smooth_pan = 1; - spin_lock_init(&gus->reg_lock); - spin_lock_init(&gus->voice_alloc); - spin_lock_init(&gus->active_voice_lock); - spin_lock_init(&gus->event_lock); - spin_lock_init(&gus->dma_lock); - spin_lock_init(&gus->pcm_volume_level_lock); - spin_lock_init(&gus->uart_cmd_lock); - mutex_init(&gus->dma_mutex); if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, gus, &ops)) < 0) { snd_gus_free(gus); return err; |