From: Lokesh Vutla <lokeshvutla@ti.com>
Date: Wed, 1 Jun 2016 08:56:02 +0000 (+0300)
Subject: crypto: omap-aes - Fix registration of algorithms
X-Git-Tag: v4.8-rc1~165^2~151
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3741bbb207f7b9e92ad3b878a30ccd1ddcdb8ac8;p=karo-tx-linux.git

crypto: omap-aes - Fix registration of algorithms

Algorithms can be registered only once. So skip registration of
algorithms if already registered (i.e. in case we have two AES cores
in the system.)

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index ce174d3b842c..4a0e6a545ba2 100644
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -1185,17 +1185,19 @@ static int omap_aes_probe(struct platform_device *pdev)
 	spin_unlock(&list_lock);
 
 	for (i = 0; i < dd->pdata->algs_info_size; i++) {
-		for (j = 0; j < dd->pdata->algs_info[i].size; j++) {
-			algp = &dd->pdata->algs_info[i].algs_list[j];
+		if (!dd->pdata->algs_info[i].registered) {
+			for (j = 0; j < dd->pdata->algs_info[i].size; j++) {
+				algp = &dd->pdata->algs_info[i].algs_list[j];
 
-			pr_debug("reg alg: %s\n", algp->cra_name);
-			INIT_LIST_HEAD(&algp->cra_list);
+				pr_debug("reg alg: %s\n", algp->cra_name);
+				INIT_LIST_HEAD(&algp->cra_list);
 
-			err = crypto_register_alg(algp);
-			if (err)
-				goto err_algs;
+				err = crypto_register_alg(algp);
+				if (err)
+					goto err_algs;
 
-			dd->pdata->algs_info[i].registered++;
+				dd->pdata->algs_info[i].registered++;
+			}
 		}
 	}