sound: oss: msnd: check request_region() return value
request_region() may fail, if so return -EBUSY. Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -1400,9 +1400,13 @@ static int __init attach_multisound(void)
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printk(KERN_ERR LOGNAME ": Couldn't grab IRQ %d\n", dev.irq);
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printk(KERN_ERR LOGNAME ": Couldn't grab IRQ %d\n", dev.irq);
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return err;
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return err;
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}
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}
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request_region(dev.io, dev.numio, dev.name);
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if (request_region(dev.io, dev.numio, dev.name) == NULL) {
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free_irq(dev.irq, &dev);
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return -EBUSY;
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}
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if ((err = dsp_full_reset()) < 0) {
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err = dsp_full_reset();
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if (err < 0) {
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release_region(dev.io, dev.numio);
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release_region(dev.io, dev.numio);
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free_irq(dev.irq, &dev);
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free_irq(dev.irq, &dev);
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return err;
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return err;
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