[PATCH 5.15 342/691] hwrng: cctrng - Add missing clk_disable_unprepare in cctrng_resume

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5.15-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Gaosheng Cui <cuigaosheng1@xxxxxxxxxx>

commit 4b7acc85de14ee8a2236f54445dc635d47eceac0 upstream.

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

Fixes: a583ed310bb6 ("hwrng: cctrng - introduce Arm CryptoCell driver")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Gaosheng Cui <cuigaosheng1@xxxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/char/hw_random/cctrng.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/char/hw_random/cctrng.c
+++ b/drivers/char/hw_random/cctrng.c
@@ -665,6 +665,7 @@ static int __maybe_unused cctrng_resume(
 	/* 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;
 	}
 






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