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(parent: 00a3ce6) | patch
s390/3215: fix hanging console issue
authorMartin Schwidefsky <schwidefsky@de.ibm.com>
Tue, 15 Jul 2014 15:53:12 +0000 (17:53 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 27 Jan 2015 16:18:59 +0000 (08:18 -0800)
commit38b1b3c12638b929e6b6e276d85ef76ad4698e05
treecf46af3c404b356b73129b6613940e272ce8319ftree | snapshot
parent00a3ce6d494476faadbe799814568c81a600e3fecommit | diff
s390/3215: fix hanging console issue

commit 26d766c60f4ea08cd14f0f3435a6db3d6cc2ae96 upstream.

The ccw_device_start in raw3215_start_io can fail. raw3215_try_io
does not check if the request could be started and removes any
pending timer. This can leave the system in a hanging state.
Check for pending request after raw3215_start_io and start a
timer if necessary.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/s390/char/con3215.c diff | blob | history
Domain: System / Kernel;