forked from luck/tmp_suning_uos_patched
[AX25] mkiss: Drop spinlock before sleeping call.
With the previous missing-unlock fix the spinlock is dropped only after the tty->driver->write() call which might sleep. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -515,6 +515,7 @@ static void ax_encaps(struct net_device *dev, unsigned char *icp, int len)
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count = kiss_esc(p, (unsigned char *)ax->xbuff, len);
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}
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}
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spin_unlock_bh(&ax->buflock);
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set_bit(TTY_DO_WRITE_WAKEUP, &ax->tty->flags);
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actual = ax->tty->driver->write(ax->tty, ax->xbuff, count);
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@ -524,7 +525,6 @@ static void ax_encaps(struct net_device *dev, unsigned char *icp, int len)
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ax->dev->trans_start = jiffies;
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ax->xleft = count - actual;
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ax->xhead = ax->xbuff + actual;
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spin_unlock_bh(&ax->buflock);
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}
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/* Encapsulate an AX.25 packet and kick it into a TTY queue. */
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