[PATCH 1/4] crypto: caam: print IV only when non NULL

[Sascha Hauer]

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.ha...@pengutronix.de>
---
 drivers/crypto/caam/caamalg.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index c0ece44f303b..bffff5415c74 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -1011,9 +1011,10 @@ static void skcipher_encrypt_done(struct device *jrdev, 
u32 *desc, u32 err,
                caam_jr_strstatus(jrdev, err);
 
 #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,
-- 
2.20.1