crypto: caam - print IV only when non NULL

Since eaed71a44ad9 ("crypto: caam - add ecb(*) support") the IV can be
NULL, so only dump it when it's non NULL as designated by the ivsize
variable.

Fixes: eaed71a44ad9 ("crypto: caam - add ecb(*) support")
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index 08c36ae..3a64f74 100644 (file)
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -1021,9 +1021,10 @@ static void skcipher_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
                                         ivsize, ivsize, 0);
 
 #ifdef DEBUG
-       print_hex_dump(KERN_ERR, "dstiv  @"__stringify(__LINE__)": ",
-                      DUMP_PREFIX_ADDRESS, 16, 4, req->iv,
-                      edesc->src_nents > 1 ? 100 : ivsize, 1);
+       if (ivsize)
+               print_hex_dump(KERN_ERR, "dstiv  @"__stringify(__LINE__)": ",
+                              DUMP_PREFIX_ADDRESS, 16, 4, req->iv,
+                              edesc->src_nents > 1 ? 100 : ivsize, 1);
 #endif
        caam_dump_sg(KERN_ERR, "dst    @" __stringify(__LINE__)": ",
                     DUMP_PREFIX_ADDRESS, 16, 4, req->dst,