commit 9d83d299549d0e121245d56954242750d0c14338
author LABBE Corentin <clabbe.montjoie@gmail.com> Fri Oct 02 14:12:58 2015 +0200
committer Herbert Xu <herbert@gondor.apana.org.au> Thu Oct 08 21:42:21 2015 +0800
tree 62abe7e8947f5b24e20371dd34b0fb9ef970c308
parent c6415a6016bff0b547c13cadb1d5e50e9ace2be3

crypto: atmel - Check for clk_prepare_enable() return value

clk_prepare_enable() can fail so add a check for this and
return the error code if it fails.

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/atmel-aes.c

diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c
index 0f9a9dc..de8f5da 100644
--- a/drivers/crypto/atmel-aes.c
+++ b/drivers/crypto/atmel-aes.c
@@ -260,7 +260,11 @@
 
 static int atmel_aes_hw_init(struct atmel_aes_dev *dd)
 {
-	clk_prepare_enable(dd->iclk);
+	int err;
+
+	err = clk_prepare_enable(dd->iclk);
+	if (err)
+		return err;
 
 	if (!(dd->flags & AES_FLAGS_INIT)) {
 		atmel_aes_write(dd, AES_CR, AES_CR_SWRST);

drivers/crypto/atmel-sha.c

diff --git a/drivers/crypto/atmel-sha.c b/drivers/crypto/atmel-sha.c
index 5b35433..5e6cf08 100644
--- a/drivers/crypto/atmel-sha.c
+++ b/drivers/crypto/atmel-sha.c
@@ -794,7 +794,11 @@
 
 static int atmel_sha_hw_init(struct atmel_sha_dev *dd)
 {
-	clk_prepare_enable(dd->iclk);
+	int err;
+
+	err = clk_prepare_enable(dd->iclk);
+	if (err)
+		return err;
 
 	if (!(SHA_FLAGS_INIT & dd->flags)) {
 		atmel_sha_write(dd, SHA_CR, SHA_CR_SWRST);

drivers/crypto/atmel-tdes.c

diff --git a/drivers/crypto/atmel-tdes.c b/drivers/crypto/atmel-tdes.c
index ca29997..504e903 100644
--- a/drivers/crypto/atmel-tdes.c
+++ b/drivers/crypto/atmel-tdes.c
@@ -218,7 +218,11 @@
 
 static int atmel_tdes_hw_init(struct atmel_tdes_dev *dd)
 {
-	clk_prepare_enable(dd->iclk);
+	int err;
+
+	err = clk_prepare_enable(dd->iclk);
+	if (err)
+		return err;
 
 	if (!(dd->flags & TDES_FLAGS_INIT)) {
 		atmel_tdes_write(dd, TDES_CR, TDES_CR_SWRST);