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(parent: 1063e43) | patch
s390/qeth: lock read device while queueing next buffer
authorJulian Wiedmann <jwi@linux.vnet.ibm.com>
Tue, 20 Mar 2018 06:59:14 +0000 (07:59 +0100)
committerDavid S. Miller <davem@davemloft.net>
Thu, 22 Mar 2018 15:52:30 +0000 (11:52 -0400)
commit17bf8c9b3d499d5168537c98b61eb7a1fcbca6c2
tree8a5ee073ef47f46c5955738bae849c9549f3b0c6tree | snapshot
parent1063e432bb45be209427ed3f1ca3908e4aa3c7d7commit | diff
s390/qeth: lock read device while queueing next buffer

For calling ccw_device_start(), issue_next_read() needs to hold the
device's ccwlock.
This is satisfied for the IRQ handler path (where qeth_irq() gets called
under the ccwlock), but we need explicit locking for the initial call by
the MPC initialization.

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/s390/net/qeth_core_main.c diff | blob | history
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