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authorAlexander Chiang <achiang@hp.com>2010-02-02 19:08:40 +0000
committerRoland Dreier <rolandd@cisco.com>2010-02-24 10:23:45 -0800
commitdc2ed5e3c963490a4fe934b482537d1274961ecb (patch)
tree7dd120ca45df9cd64c2ee666f5bda5538f573feb /drivers
parentd451b8df9f7e572ea77f976745f424dd1dae8aeb (diff)
downloadlinux-dc2ed5e3c963490a4fe934b482537d1274961ecb.tar.bz2
IB/umad: Use stack variable 'base' in ib_umad_init_port
This change is not useful by itself, but sets us up for a future change that allows us to support more than IB_UMAD_MAX_PORTS in a system. Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/infiniband/core/user_mad.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c
index df403ec49d94..5a66bd062389 100644
--- a/drivers/infiniband/core/user_mad.c
+++ b/drivers/infiniband/core/user_mad.c
@@ -975,6 +975,7 @@ static int ib_umad_init_port(struct ib_device *device, int port_num,
struct ib_umad_port *port)
{
int devnum;
+ dev_t base;
spin_lock(&port_lock);
devnum = find_first_zero_bit(dev_map, IB_UMAD_MAX_PORTS);
@@ -983,6 +984,7 @@ static int ib_umad_init_port(struct ib_device *device, int port_num,
return -1;
}
port->dev_num = devnum;
+ base = devnum + base_dev;
set_bit(devnum, dev_map);
spin_unlock(&port_lock);
@@ -995,7 +997,7 @@ static int ib_umad_init_port(struct ib_device *device, int port_num,
cdev_init(&port->cdev, &umad_fops);
port->cdev.owner = THIS_MODULE;
kobject_set_name(&port->cdev.kobj, "umad%d", port->dev_num);
- if (cdev_add(&port->cdev, base_dev + devnum, 1))
+ if (cdev_add(&port->cdev, base, 1))
goto err_cdev;
port->dev = device_create(umad_class, device->dma_device,
@@ -1009,10 +1011,11 @@ static int ib_umad_init_port(struct ib_device *device, int port_num,
if (device_create_file(port->dev, &dev_attr_port))
goto err_dev;
+ base += IB_UMAD_MAX_PORTS;
cdev_init(&port->sm_cdev, &umad_sm_fops);
port->sm_cdev.owner = THIS_MODULE;
kobject_set_name(&port->sm_cdev.kobj, "issm%d", port->dev_num);
- if (cdev_add(&port->sm_cdev, base_dev + devnum + IB_UMAD_MAX_PORTS, 1))
+ if (cdev_add(&port->sm_cdev, base, 1))
goto err_sm_cdev;
port->sm_dev = device_create(umad_class, device->dma_device,