[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>
diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index 41b3d83..f4424cf 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -515,6 +515,7 @@
count = kiss_esc(p, (unsigned char *)ax->xbuff, len);
}
}
+ spin_unlock_bh(&ax->buflock);
set_bit(TTY_DO_WRITE_WAKEUP, &ax->tty->flags);
actual = ax->tty->driver->write(ax->tty, ax->xbuff, count);
@@ -524,7 +525,6 @@
ax->dev->trans_start = jiffies;
ax->xleft = count - actual;
ax->xhead = ax->xbuff + actual;
- spin_unlock_bh(&ax->buflock);
}
/* Encapsulate an AX.25 packet and kick it into a TTY queue. */