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| author | Daniel Fu <danifu@nvidia.com> | 2013-08-30 19:48:22 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-14 06:42:15 -0700 |
| commit | 6ae69a801bb987433282fc6c8c18fe60c1dae6b4 (patch) | |
| tree | 2c63e207dcc2d478c3e15a7a3a40eafa6da27b0a /drivers/cpufreq/exynos5250-cpufreq.c | |
| parent | 3246a0352e3d58380b9386570f1db1faf7edf8a8 (diff) | |
cpuidle: Check the result of cpuidle_get_driver() against NULL
commit 3b9c10e98021e1f92e6f8c7ce1778b86ba68db10 upstream.
If the current CPU has no cpuidle driver, drv will be NULL in
cpuidle_driver_ref(). Check if that is the case before trying
to bump up the driver's refcount to prevent the kernel from
crashing.
[rjw: Subject and changelog]
Signed-off-by: Daniel Fu <danifu@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/cpufreq/exynos5250-cpufreq.c')
0 files changed, 0 insertions, 0 deletions