irda: via-ircc proper dma freeing
1. dma should be freed when dma2 request fail. 2. dma2 should be freed too when device close. Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1546,6 +1546,7 @@ static int via_ircc_net_open(struct net_device *dev)
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IRDA_WARNING("%s, unable to allocate dma2=%d\n",
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driver_name, self->io.dma2);
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free_irq(self->io.irq, self);
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free_dma(self->io.dma);
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return -EAGAIN;
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}
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}
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@ -1606,6 +1607,8 @@ static int via_ircc_net_close(struct net_device *dev)
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EnAllInt(iobase, OFF);
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free_irq(self->io.irq, dev);
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free_dma(self->io.dma);
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if (self->io.dma2 != self->io.dma)
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free_dma(self->io.dma2);
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return 0;
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}
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