4 files changed, 20 insertions, 10 deletions

diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c
index 512b1c43460c..46474842cfe9 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 46185084121e..ac7edc24165c 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 e7db054fb1c8..6babb72b39fc 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 fb3526254426..ec83e9fe387b 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 = {