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| author | Peter Zijlstra <peterz@infradead.org> | 2018-04-30 12:00:11 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-22 14:28:48 +0200 |
| commit | 16b3ae12337eb1695de0031fe4e030fb7fd6c2d9 (patch) | |
| tree | 93264d298a9bfed2a66302388883341d615bcc90 | |
| parent | a406abeb7416501355668222164919836da67034 (diff) | |
| download | linux-stable-16b3ae12337eb1695de0031fe4e030fb7fd6c2d9.tar.gz linux-stable-16b3ae12337eb1695de0031fe4e030fb7fd6c2d9.tar.bz2 linux-stable-16b3ae12337eb1695de0031fe4e030fb7fd6c2d9.zip | |
clocksource: Initialize cs->wd_list
commit 5b9e886a4af97574ca3ce1147f35545da0e7afc7 upstream.
A number of places relies on list_empty(&cs->wd_list), however the
list_head does not get initialized. Do so upon registration, such that
thereafter it is possible to rely on list_empty() correctly reflecting
the list membership status.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Diego Viola <diego.viola@gmail.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: stable@vger.kernel.org
Cc: len.brown@intel.com
Cc: rjw@rjwysocki.net
Cc: rui.zhang@intel.com
Link: https://lkml.kernel.org/r/20180430100344.472662715@infradead.org
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | kernel/time/clocksource.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c index 03918a19cf2d..3b71d859ee38 100644 --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c @@ -322,6 +322,8 @@ static void clocksource_enqueue_watchdog(struct clocksource *cs) { unsigned long flags; + INIT_LIST_HEAD(&cs->wd_list); + spin_lock_irqsave(&watchdog_lock, flags); if (cs->flags & CLOCK_SOURCE_MUST_VERIFY) { /* cs is a clocksource to be watched. */ |