diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 25b1018..82bc83b 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -240,11 +240,10 @@
 	if (!private_data || !private_data_len)
 		return NULL;
 
-	data = kmalloc(private_data_len, GFP_KERNEL);
+	data = kmemdup(private_data, private_data_len, GFP_KERNEL);
 	if (!data)
 		return ERR_PTR(-ENOMEM);
 
-	memcpy(data, private_data, private_data_len);
 	return data;
 }
 
diff --git a/drivers/infiniband/core/iwcm.c b/drivers/infiniband/core/iwcm.c
index c3fb304..2bbcfa5 100644
--- a/drivers/infiniband/core/iwcm.c
+++ b/drivers/infiniband/core/iwcm.c
@@ -140,10 +140,9 @@
 {
 	void *p;
 
-	p = kmalloc(event->private_data_len, GFP_ATOMIC);
+	p = kmemdup(event->private_data, event->private_data_len, GFP_ATOMIC);
 	if (!p)
 		return -ENOMEM;
-	memcpy(p, event->private_data, event->private_data_len);
 	event->private_data = p;
 	return 0;
 }
diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c
index ad4f4d5..b4894ba 100644
--- a/drivers/infiniband/core/ucm.c
+++ b/drivers/infiniband/core/ucm.c
@@ -328,20 +328,18 @@
 	}
 
 	if (uvt->data_len) {
-		uvt->data = kmalloc(uvt->data_len, GFP_KERNEL);
+		uvt->data = kmemdup(evt->private_data, uvt->data_len, GFP_KERNEL);
 		if (!uvt->data)
 			goto err1;
 
-		memcpy(uvt->data, evt->private_data, uvt->data_len);
 		uvt->resp.present |= IB_UCM_PRES_DATA;
 	}
 
 	if (uvt->info_len) {
-		uvt->info = kmalloc(uvt->info_len, GFP_KERNEL);
+		uvt->info = kmemdup(info, uvt->info_len, GFP_KERNEL);
 		if (!uvt->info)
 			goto err2;
 
-		memcpy(uvt->info, info, uvt->info_len);
 		uvt->resp.present |= IB_UCM_PRES_INFO;
 	}
 	return 0;
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index fc67f78..21422a3 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -1100,11 +1100,10 @@
 	struct mthca_fmr *fmr;
 	int err;
 
-	fmr = kmalloc(sizeof *fmr, GFP_KERNEL);
+	fmr = kmemdup(fmr_attr, sizeof *fmr, GFP_KERNEL);
 	if (!fmr)
 		return ERR_PTR(-ENOMEM);
 
-	memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr);
 	err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num,
 			     convert_access(mr_access_flags), fmr);