net: dsa: mv88e6xxx: Hold the mutex while freeing g1 interrupts

Freeing interrupts requires switch register access to mask the
interrupts. Hence we must hold the register mutex.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2016-11-20 20:14:19 +01:00 • committed by David S. Miller
commit 61f7c3f803