6 files changed, 23 insertions, 15 deletions

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 6ae418e..b930b81 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1676,13 +1676,13 @@ int rdma_set_ib_paths(struct rdma_cm_id *id,
 	if (!cma_comp_exch(id_priv, CMA_ADDR_RESOLVED, CMA_ROUTE_RESOLVED))
 		return -EINVAL;
 
-	id->route.path_rec = kmalloc(sizeof *path_rec * num_paths, GFP_KERNEL);
+	id->route.path_rec = kmemdup(path_rec, sizeof *path_rec * num_paths,
+				     GFP_KERNEL);
 	if (!id->route.path_rec) {
 		ret = -ENOMEM;
 		goto err;
 	}
 
-	memcpy(id->route.path_rec, path_rec, sizeof *path_rec * num_paths);
 	id->route.num_paths = num_paths;
 	return 0;
 err:
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
index 1df1194..6dc7b77 100644
--- a/drivers/infiniband/core/mad.c
+++ b/drivers/infiniband/core/mad.c
@@ -291,13 +291,11 @@ struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device,
 	}
 
 	if (mad_reg_req) {
-		reg_req = kmalloc(sizeof *reg_req, GFP_KERNEL);
+		reg_req = kmemdup(mad_reg_req, sizeof *reg_req, GFP_KERNEL);
 		if (!reg_req) {
 			ret = ERR_PTR(-ENOMEM);
 			goto error3;
 		}
-		/* Make a copy of the MAD registration request */
-		memcpy(reg_req, mad_reg_req, sizeof *reg_req);
 	}
 
 	/* Now, fill in the various structures */
diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c
index 512b1c4..4647484 100644
--- a/drivers/infiniband/core/ucm.c
+++ b/drivers/infiniband/core/ucm.c
@@ -1181,7 +1181,7 @@ static int ib_ucm_open(struct inode *inode, struct file *filp)
 	file->filp = filp;
 	file->device = container_of(inode->i_cdev, struct ib_ucm_device, cdev);
 
-	return 0;
+	return nonseekable_open(inode, filp);
 }
 
 static int ib_ucm_close(struct inode *inode, struct file *filp)
@@ -1229,6 +1229,7 @@ static const struct file_operations ucm_fops = {
 	.release = ib_ucm_close,
 	.write	 = ib_ucm_write,
 	.poll    = ib_ucm_poll,
+	.llseek	 = no_llseek,
 };
 
 static ssize_t show_ibdev(struct device *dev, struct device_attribute *attr,
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index 4618508..ac7edc2 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -1220,7 +1220,8 @@ static int ucma_open(struct inode *inode, struct file *filp)
 
 	filp->private_data = file;
 	file->filp = filp;
-	return 0;
+
+	return nonseekable_open(inode, filp);
 }
 
 static int ucma_close(struct inode *inode, struct file *filp)
@@ -1250,6 +1251,7 @@ static const struct file_operations ucma_fops = {
 	.release = ucma_close,
 	.write	 = ucma_write,
 	.poll    = ucma_poll,
+	.llseek	 = no_llseek,
 };
 
 static struct miscdevice ucma_misc = {
diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c
index e7db054..6babb72 100644
--- a/drivers/infiniband/core/user_mad.c
+++ b/drivers/infiniband/core/user_mad.c
@@ -781,7 +781,7 @@ static int ib_umad_open(struct inode *inode, struct file *filp)
 {
 	struct ib_umad_port *port;
 	struct ib_umad_file *file;
-	int ret = 0;
+	int ret;
 
 	port = container_of(inode->i_cdev, struct ib_umad_port, cdev);
 	if (port)
@@ -814,6 +814,8 @@ static int ib_umad_open(struct inode *inode, struct file *filp)
 
 	list_add_tail(&file->port_list, &port->file_list);
 
+	ret = nonseekable_open(inode, filp);
+
 out:
 	mutex_unlock(&port->file_mutex);
 	return ret;
@@ -866,7 +868,8 @@ static const struct file_operations umad_fops = {
 	.compat_ioctl	= ib_umad_compat_ioctl,
 #endif
 	.open		= ib_umad_open,
-	.release	= ib_umad_close
+	.release	= ib_umad_close,
+	.llseek		= no_llseek,
 };
 
 static int ib_umad_sm_open(struct inode *inode, struct file *filp)
@@ -903,7 +906,7 @@ static int ib_umad_sm_open(struct inode *inode, struct file *filp)
 
 	filp->private_data = port;
 
-	return 0;
+	return nonseekable_open(inode, filp);
 
 fail:
 	kref_put(&port->umad_dev->ref, ib_umad_release_dev);
@@ -933,7 +936,8 @@ static int ib_umad_sm_close(struct inode *inode, struct file *filp)
 static const struct file_operations umad_sm_fops = {
 	.owner	 = THIS_MODULE,
 	.open	 = ib_umad_sm_open,
-	.release = ib_umad_sm_close
+	.release = ib_umad_sm_close,
+	.llseek	 = no_llseek,
 };
 
 static struct ib_client umad_client = {
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index fb35262..ec83e9f 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -369,7 +369,8 @@ static const struct file_operations uverbs_event_fops = {
 	.read	 = ib_uverbs_event_read,
 	.poll    = ib_uverbs_event_poll,
 	.release = ib_uverbs_event_close,
-	.fasync  = ib_uverbs_event_fasync
+	.fasync  = ib_uverbs_event_fasync,
+	.llseek	 = no_llseek,
 };
 
 void ib_uverbs_comp_handler(struct ib_cq *cq, void *cq_context)
@@ -623,7 +624,7 @@ static int ib_uverbs_open(struct inode *inode, struct file *filp)
 
 	filp->private_data = file;
 
-	return 0;
+	return nonseekable_open(inode, filp);
 
 err_module:
 	module_put(dev->ib_dev->owner);
@@ -651,7 +652,8 @@ static const struct file_operations uverbs_fops = {
 	.owner	 = THIS_MODULE,
 	.write	 = ib_uverbs_write,
 	.open	 = ib_uverbs_open,
-	.release = ib_uverbs_close
+	.release = ib_uverbs_close,
+	.llseek	 = no_llseek,
 };
 
 static const struct file_operations uverbs_mmap_fops = {
@@ -659,7 +661,8 @@ static const struct file_operations uverbs_mmap_fops = {
 	.write	 = ib_uverbs_write,
 	.mmap    = ib_uverbs_mmap,
 	.open	 = ib_uverbs_open,
-	.release = ib_uverbs_close
+	.release = ib_uverbs_close,
+	.llseek	 = no_llseek,
 };
 
 static struct ib_client uverbs_client = {