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(parent: fd2e8d4) | patch
virtio/s390: handle failures of READ_VQ_CONF ccw
authorPierre Morel <pmorel@linux.vnet.ibm.com>
Thu, 10 Sep 2015 14:35:08 +0000 (16:35 +0200)
committerMichael S. Tsirkin <mst@redhat.com>
Wed, 16 Sep 2015 09:48:08 +0000 (12:48 +0300)
commitad2aa04218de9bd734d593adb0ac59854ec0cb68
tree9450fac88940838127f0170f2bd3d22e323e0bc9tree | snapshot
parentfd2e8d4300c56f9660679d629c449118e14c00cdcommit | diff
virtio/s390: handle failures of READ_VQ_CONF ccw

In virtio_ccw_read_vq_conf() the return value of ccw_io_helper()
was not checked.
If the configuration could not be read properly, we'd wrongly assume a
queue size of 0.

Let's propagate any I/O error to virtio_ccw_setup_vq() so it may
properly fail.

Signed-off-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
drivers/s390/virtio/virtio_ccw.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git