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From: Gilad Ben-Yossef <gilad@benyossef.com> commit cedca59fae5834af8445b403c66c9953754375d7 upstream. pm_runtime_get_sync() can return 1 as a valid (none error) return code. Treat it as such. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Cc: stable@vger.kernel.org # v4.19+ Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- drivers/crypto/ccree/cc_pm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/ccree/cc_pm.c b/drivers/crypto/ccree/cc_pm.c index 638082d..2a337a6 100644 --- a/drivers/crypto/ccree/cc_pm.c +++ b/drivers/crypto/ccree/cc_pm.c @@ -82,7 +82,7 @@ int cc_pm_get(struct device *dev) else pm_runtime_get_noresume(dev); - return rc; + return (rc == 1 ? 0 : rc); } int cc_pm_put_suspend(struct device *dev) -- 1.8.3