hwrng: cctrng - Add missing clk_disable_unprepare in cctrng_resume

commit 4b7acc85de14ee8a2236f54445dc635d47eceac0 upstream.

Add the missing clk_disable_unprepare() before return in
cctrng_resume().

Fixes: a583ed310bb6 ("hwrng: cctrng - introduce Arm CryptoCell driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/char/hw_random/cctrng.c b/drivers/char/hw_random/cctrng.c
index 7a293f2147a00c7586a068297c4b50160dd1a02f..9c61807dfe13b04ec46a857d36649efe7311fe32 100644 (file)
--- a/drivers/char/hw_random/cctrng.c
+++ b/drivers/char/hw_random/cctrng.c
@@ -679,6 +679,7 @@ static int __maybe_unused cctrng_resume(struct device *dev)
        /* wait for Cryptocell reset completion */
        if (!cctrng_wait_for_reset_completion(drvdata)) {
                dev_err(dev, "Cryptocell reset not completed");
+               clk_disable_unprepare(drvdata->clk);
                return -EBUSY;
        }