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authorzhong jiang <zhongjiang@huawei.com>2018-09-08 16:50:21 +0800
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2018-09-20 13:20:27 +0200
commit827fd299a16404e1b8a64e5eb1830244ccd395cd (patch)
treeea42a7e86c408416cfc791dbd4ff0a6c55b0df76 /drivers
parent6779df406b27ce44d989e965169db39fb58a7efa (diff)
downloadblackbird-obmc-linux-827fd299a16404e1b8a64e5eb1830244ccd395cd.tar.gz
blackbird-obmc-linux-827fd299a16404e1b8a64e5eb1830244ccd395cd.zip
s390/zcrypt: Use kmemdup to replace kmalloc + memcpy
kmemdup has implemented the function that kmalloc() + memcpy() will do. We prefer to use the kmemdup function rather than an open coded implementation. Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/s390/crypto/zcrypt_msgtype6.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/s390/crypto/zcrypt_msgtype6.c b/drivers/s390/crypto/zcrypt_msgtype6.c
index 2101776a8148..9ac960d83c28 100644
--- a/drivers/s390/crypto/zcrypt_msgtype6.c
+++ b/drivers/s390/crypto/zcrypt_msgtype6.c
@@ -1131,10 +1131,9 @@ unsigned int get_cprb_fc(struct ica_xcRB *xcRB,
ap_msg->receive = zcrypt_msgtype6_receive;
ap_msg->psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
- ap_msg->private = kmalloc(sizeof(resp_type), GFP_KERNEL);
+ ap_msg->private = kmemdup(&resp_type, sizeof(resp_type), GFP_KERNEL);
if (!ap_msg->private)
return -ENOMEM;
- memcpy(ap_msg->private, &resp_type, sizeof(resp_type));
return XCRB_msg_to_type6CPRB_msgX(ap_msg, xcRB, func_code, dom);
}
@@ -1187,10 +1186,9 @@ unsigned int get_ep11cprb_fc(struct ep11_urb *xcrb,
ap_msg->receive = zcrypt_msgtype6_receive_ep11;
ap_msg->psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
- ap_msg->private = kmalloc(sizeof(resp_type), GFP_KERNEL);
+ ap_msg->private = kmemdup(&resp_type, sizeof(resp_type), GFP_KERNEL);
if (!ap_msg->private)
return -ENOMEM;
- memcpy(ap_msg->private, &resp_type, sizeof(resp_type));
return xcrb_msg_to_type6_ep11cprb_msgx(ap_msg, xcrb, func_code);
}
@@ -1282,10 +1280,9 @@ unsigned int get_rng_fc(struct ap_message *ap_msg, int *func_code,
ap_msg->receive = zcrypt_msgtype6_receive;
ap_msg->psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
- ap_msg->private = kmalloc(sizeof(resp_type), GFP_KERNEL);
+ ap_msg->private = kmemdup(&resp_type, sizeof(resp_type), GFP_KERNEL);
if (!ap_msg->private)
return -ENOMEM;
- memcpy(ap_msg->private, &resp_type, sizeof(resp_type));
rng_type6CPRB_msgX(ap_msg, ZCRYPT_RNG_BUFFER_SIZE, domain);
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