mfp.tim_dt_a = 1; /* Cause interrupt after first event. */
mfp.tim_ct_a = 8; /* Turn on event counting. */
/* Register interrupt handler. */
- request_irq(IRQ_MFP_TIMA, AtaInterrupt, IRQ_TYPE_SLOW, "DMA sound",
- AtaInterrupt);
+ if (request_irq(IRQ_MFP_TIMA, AtaInterrupt, IRQ_TYPE_SLOW, "DMA sound",
+ AtaInterrupt))
+ return 0;
mfp.int_en_a |= 0x20; /* Turn interrupt on. */
mfp.int_mk_a |= 0x20;
return 1;
static int __init Q40IrqInit(void)
{
/* Register interrupt handler. */
- request_irq(Q40_IRQ_SAMPLE, Q40StereoInterrupt, 0,
- "DMA sound", Q40Interrupt);
+ if (request_irq(Q40_IRQ_SAMPLE, Q40StereoInterrupt, 0,
+ "DMA sound", Q40Interrupt))
+ return 0;
return(1);
}
u_char *start;
u_long size;
u_char speed;
+ int error;
/* used by Q40Play() if all doubts whether there really is something
* to be played are already wiped out.
master_outb( 0,SAMPLE_ENABLE_REG);
free_irq(Q40_IRQ_SAMPLE, Q40Interrupt);
if (dmasound.soft.stereo)
- request_irq(Q40_IRQ_SAMPLE, Q40StereoInterrupt, 0,
- "Q40 sound", Q40Interrupt);
+ error = request_irq(Q40_IRQ_SAMPLE, Q40StereoInterrupt, 0,
+ "Q40 sound", Q40Interrupt);
else
- request_irq(Q40_IRQ_SAMPLE, Q40MonoInterrupt, 0,
- "Q40 sound", Q40Interrupt);
+ error = request_irq(Q40_IRQ_SAMPLE, Q40MonoInterrupt, 0,
+ "Q40 sound", Q40Interrupt);
+ if (error && printk_ratelimit())
+ pr_err("Couldn't register sound interrupt\n");
master_outb( speed, SAMPLE_RATE_REG);
master_outb( 1,SAMPLE_CLEAR_REG);