crypto: tcrypt - do not allocate iv on stack for aead speed tests

See also: 9bac019dad8098a77cce555d929f678e22111783

Signed-off-by: Cristian Stoica <cristian.stoica@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 8 insertions, 3 deletions

diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 2b2486ad26ef..4b9e23fa4204 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -280,16 +280,20 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
         struct scatterlist *sgout;
         const char *e;
         void *assoc;
-        char iv[MAX_IVLEN];
+        char *iv;
         char *xbuf[XBUFSIZE];
         char *xoutbuf[XBUFSIZE];
         char *axbuf[XBUFSIZE];
         unsigned int *b_size;
         unsigned int iv_len;
 
+        iv = kzalloc(MAX_IVLEN, GFP_KERNEL);
+        if (!iv)
+                return;
+
         if (aad_size >= PAGE_SIZE) {
                 pr_err("associate data length (%u) too big\n", aad_size);
-                return;
+                goto out_noxbuf;
         }
 
         if (enc == ENCRYPT)
@@ -355,7 +359,7 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
 
                         iv_len = crypto_aead_ivsize(tfm);
                         if (iv_len)
-                                memset(&iv, 0xff, iv_len);
+                                memset(iv, 0xff, iv_len);
 
                         crypto_aead_clear_flags(tfm, ~0);
                         printk(KERN_INFO "test %u (%d bit key, %d byte blocks): ",
@@ -408,6 +412,7 @@ out_nooutbuf:
 out_noaxbuf:
         testmgr_free_buf(xbuf);
 out_noxbuf:
+        kfree(iv);
         return;
 }