crypto: stm32/hash - don't print error on probe deferral

Change driver to not print an error message when the device
probe is deferred for a clock resource.
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/stm32/stm32-hash.c

@@ -1464,8 +1464,11 @@ static int stm32_hash_probe(struct platform_device *pdev)
 
 	hdev->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(hdev->clk)) {
-		dev_err(dev, "failed to get clock for hash (%lu)\n",
-			PTR_ERR(hdev->clk));
+		if (PTR_ERR(hdev->clk) != -EPROBE_DEFER) {
+			dev_err(dev, "failed to get clock for hash (%lu)\n",
+				PTR_ERR(hdev->clk));
+		}
+
 		return PTR_ERR(hdev->clk);
 	}