crypto: caam - free resources in case caam_rng registration failed

Check the return value of the hardware registration for caam_rng and free resources in case of failure. Fixes: e24f7c9 ("crypto: caam - hwrng support") Signed-off-by: Iuliana Prodan <[email protected]> Reviewed-by: Horia Geanta <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
josf · Aug 9, 2019 · c59a1d4 · c59a1d4
1 parent e9b4913
commit c59a1d4
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/drivers/crypto/caam/caamrng.c b/drivers/crypto/caam/caamrng.c
@@ -333,7 +333,10 @@ int caam_rng_init(struct device *ctrldev)
 		goto free_rng_ctx;
 
 	dev_info(dev, "registering rng-caam\n");
-	return hwrng_register(&caam_rng);
+
+	err = hwrng_register(&caam_rng);
+	if (!err)
+		return err;
 
 free_rng_ctx:
 	kfree(rng_ctx);