s390/zcrypt: use kzalloc

BugLink: https://bugs.launchpad.net/bugs/1939618
This patch fixes below warning reported by coccicheck

drivers/s390/crypto/zcrypt_ep11misc.c:198:8-15: WARNING:
kzalloc should be used for cprb, instead of kmalloc/memset

Link: https://lkml.kernel.org/r/1587472548-105240-1-git-send-email-zou_wei@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
(cherry picked from commit 79d6c50227103a9f7df9690b38ff74127f69d3cf)
Signed-off-by: Frank Heimes <frank.heimes@canonical.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

diff --git a/drivers/s390/crypto/zcrypt_ep11misc.c b/drivers/s390/crypto/zcrypt_ep11misc.c
index 7dd987afcd555f72b3e848a3a4c8497993f77753..d48fe63317a5efee692e83cdd96b3f2c0a9d621e 100644 (file)
--- a/drivers/s390/crypto/zcrypt_ep11misc.c
+++ b/drivers/s390/crypto/zcrypt_ep11misc.c
@@ -195,11 +195,10 @@ static inline struct ep11_cprb *alloc_cprb(size_t payload_len)
        size_t len = sizeof(struct ep11_cprb) + payload_len;
        struct ep11_cprb *cprb;
 
-       cprb = kmalloc(len, GFP_KERNEL);
+       cprb = kzalloc(len, GFP_KERNEL);
        if (!cprb)
                return NULL;
 
-       memset(cprb, 0, len);
        cprb->cprb_len = sizeof(struct ep11_cprb);
        cprb->cprb_ver_id = 0x04;
        memcpy(cprb->func_id, "T4", 2);