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(parent: 3d7f358) | patch
staging: greybus/timesync: avoid divide by zero on X86 Qemu
authorBryan O'Donoghue <pure.logic@nexus-software.ie>
Mon, 26 Sep 2016 17:01:23 +0000 (18:01 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 27 Sep 2016 10:59:51 +0000 (12:59 +0200)
commit659849cdc065c3620e49f9a7dbc384669f4592ab
treec8703817a3522f0e15db3b28b39b61e48625e68ctree | snapshot
parent3d7f3588553a9ee392aa1abb5a3e8fd4b1ba8f5ecommit | diff
staging: greybus/timesync: avoid divide by zero on X86 Qemu

A system configured without CONFIG_CPUFREQ will return 0 for cpufreq_get().
greybus-timesync can subsequently then do a divide-by-zero as result. This
patch fixes by checking for a zero return value from cpufreq_get() and
setting to a default value of 19.2MHz.

Reported-by: Rui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/greybus/timesync_platform.c diff | blob | history
Domain: System / Kernel;