crypto: aspeed - fix double free caused by devm

The clock obtained via devm_clk_get_enabled() is automatically managed
by devres and will be disabled and freed on driver detach. Manually
calling clk_disable_unprepare() in error path and remove function
causes double free.

Remove the manual clock cleanup in both aspeed_acry_probe()'s error
path and aspeed_acry_remove().

Fixes: 2f1cf4e ("crypto: aspeed - Add ACRY RSA driver")
Signed-off-by: Haotian Zhang <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

Author: ISCAS-Vulab

drivers/crypto/aspeed/aspeed-acry.c

@@ -787,7 +787,6 @@ static int aspeed_acry_probe(struct platform_device *pdev)
 err_engine_rsa_start:
 	crypto_engine_exit(acry_dev->crypt_engine_rsa);
 clk_exit:
-	clk_disable_unprepare(acry_dev->clk);
 
 	return rc;
 }
@@ -799,7 +798,6 @@ static void aspeed_acry_remove(struct platform_device *pdev)
 	aspeed_acry_unregister(acry_dev);
 	crypto_engine_exit(acry_dev->crypt_engine_rsa);
 	tasklet_kill(&acry_dev->done_task);
-	clk_disable_unprepare(acry_dev->clk);
 }
 
 MODULE_DEVICE_TABLE(of, aspeed_acry_of_matches);