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mfd: Make sure to request twl6030 IRQ before using the irq_num

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I was trying to fix the error handling part because in the case of
request_irq failure, it should call kthread_stop instead of free_irq.
But it seems more reasonable to do request_irq before calling kthread_run.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Axel Lin 2011-08-11 15:21:00 +08:00 committed by Samuel Ortiz
parent bd4a40b57b
commit 862de70c12
1 changed files with 10 additions and 8 deletions
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18
drivers/mfd/twl6030-irq.c
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@ -331,12 +331,6 @@ int twl6030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end)
/* install an irq handler to demultiplex the TWL6030 interrupt */
init_completion(&irq_event);
task = kthread_run(twl6030_irq_thread, (void *)irq_num, "twl6030-irq");
if (IS_ERR(task)) {
pr_err("twl6030: could not create irq %d thread!\n", irq_num);
status = PTR_ERR(task);
goto fail_kthread;
}
status = request_irq(irq_num, handle_twl6030_pih, IRQF_DISABLED,
"TWL6030-PIH", &irq_event);
@ -344,11 +338,19 @@ int twl6030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end)
pr_err("twl6030: could not claim irq%d: %d\n", irq_num, status);
goto fail_irq;
}
task = kthread_run(twl6030_irq_thread, (void *)irq_num, "twl6030-irq");
if (IS_ERR(task)) {
pr_err("twl6030: could not create irq %d thread!\n", irq_num);
status = PTR_ERR(task);
goto fail_kthread;
}
return status;
fail_irq:
free_irq(irq_num, &irq_event);
fail_kthread:
free_irq(irq_num, &irq_event);
fail_irq:
for (i = irq_base; i < irq_end; i++)
irq_set_chip_and_handler(i, NULL, NULL);
return status;