[PATCH 1/3] crypto: omap - add omap_aes_unregister_algs helper

[Thorsten Blum]

Add a new helper omap_aes_unregister_algs() and replace two for loops in
omap_aes_probe() and omap_aes_remove(), which also ensure ->registered
is reset to 0.

Replace two additional for loops with crypto_engine_unregister_aeads()
while at it and reset ->registered to 0 explicitly.

Signed-off-by: Thorsten Blum <thorsten.blum@xxxxxxxxx>
---
 drivers/crypto/omap-aes.c | 43 ++++++++++++++++++++-------------------
 1 file changed, 22 insertions(+), 21 deletions(-)

diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index 3eadaf7a64fa..f31555c0d715 100644
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -1089,6 +1089,20 @@ static struct attribute *omap_aes_attrs[] = {
 };
 ATTRIBUTE_GROUPS(omap_aes);
 
+static void omap_aes_unregister_algs(const struct omap_aes_pdata *pdata)
+{
+	struct omap_aes_algs_info *alg_info;
+	int i;
+
+	for (i = pdata->algs_info_size - 1; i >= 0; i--) {
+		alg_info = &pdata->algs_info[i];
+
+		crypto_engine_unregister_skciphers(alg_info->algs_list,
+						   alg_info->registered);
+		alg_info->registered = 0;
+	}
+}
+
 static int omap_aes_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -1215,15 +1229,11 @@ static int omap_aes_probe(struct platform_device *pdev)
 
 	return 0;
 err_aead_algs:
-	for (i = dd->pdata->aead_algs_info->registered - 1; i >= 0; i--) {
-		aalg = &dd->pdata->aead_algs_info->algs_list[i];
-		crypto_engine_unregister_aead(aalg);
-	}
+	crypto_engine_unregister_aeads(dd->pdata->aead_algs_info->algs_list,
+				       dd->pdata->aead_algs_info->registered);
+	dd->pdata->aead_algs_info->registered = 0;
 err_algs:
-	for (i = dd->pdata->algs_info_size - 1; i >= 0; i--)
-		for (j = dd->pdata->algs_info[i].registered - 1; j >= 0; j--)
-			crypto_engine_unregister_skcipher(
-					&dd->pdata->algs_info[i].algs_list[j]);
+	omap_aes_unregister_algs(dd->pdata);
 
 err_engine:
 	if (dd->engine)
@@ -1244,25 +1254,16 @@ static int omap_aes_probe(struct platform_device *pdev)
 static void omap_aes_remove(struct platform_device *pdev)
 {
 	struct omap_aes_dev *dd = platform_get_drvdata(pdev);
-	struct aead_engine_alg *aalg;
-	int i, j;
 
 	spin_lock_bh(&list_lock);
 	list_del(&dd->list);
 	spin_unlock_bh(&list_lock);
 
-	for (i = dd->pdata->algs_info_size - 1; i >= 0; i--)
-		for (j = dd->pdata->algs_info[i].registered - 1; j >= 0; j--) {
-			crypto_engine_unregister_skcipher(
-					&dd->pdata->algs_info[i].algs_list[j]);
-			dd->pdata->algs_info[i].registered--;
-		}
+	omap_aes_unregister_algs(dd->pdata);
 
-	for (i = dd->pdata->aead_algs_info->registered - 1; i >= 0; i--) {
-		aalg = &dd->pdata->aead_algs_info->algs_list[i];
-		crypto_engine_unregister_aead(aalg);
-		dd->pdata->aead_algs_info->registered--;
-	}
+	crypto_engine_unregister_aeads(dd->pdata->aead_algs_info->algs_list,
+				       dd->pdata->aead_algs_info->registered);
+	dd->pdata->aead_algs_info->registered = 0;
 
 	crypto_engine_exit(dd->engine);