dev_pm_put_subsys_data() calls kfree() while holding device power lock, when the reference count is 0. Fix it to call kfree() after releasing the lock.
Signed-off-by: Shuah Khan <[email protected]> --- drivers/base/power/common.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/base/power/common.c b/drivers/base/power/common.c index 39c3252..da05fe2 100644 --- a/drivers/base/power/common.c +++ b/drivers/base/power/common.c @@ -73,13 +73,17 @@ int dev_pm_put_subsys_data(struct device *dev) if (--psd->refcount == 0) { dev->power.subsys_data = NULL; - kfree(psd); ret = 1; } out: spin_unlock_irq(&dev->power.lock); + if (ret == 1) { + /* kfree() verifies that its argument is nonzero. */ + kfree(psd); + } + return ret; } EXPORT_SYMBOL_GPL(dev_pm_put_subsys_data); -- 1.7.10.4 N�����r��y����b�X��ǧv�^�){.n�+����{����zX����ܨ}���Ơz�&j:+v�������zZ+��+zf���h���~����i���z� �w���?�����&�)ߢf��^jǫy�m��@A�a��� 0��h���i
