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authorAlexander Chiang <achiang@hp.com>2010-02-02 19:08:04 +0000
committerRoland Dreier <rolandd@cisco.com>2010-02-24 10:23:40 -0800
commitddbd6883013dcc9f9ca5c0b26f79d9334a95926c (patch)
tree755aa7301cab6a8ed417b55c7d8cd3c7b721e99d
parent38707980c42c58e2d00b34ecaa40cf5207bdd9d1 (diff)
IB/uverbs: use stack variable 'base' in ib_uverbs_add_one
This change is not useful by itself, but sets us up for a future change that allows us to support more than IB_UVERBS_MAX_DEVICES in a system. Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
-rw-r--r--drivers/infiniband/core/uverbs_main.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index acae9ed0572..8c594cde8a1 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -731,6 +731,7 @@ static CLASS_ATTR(abi_version, S_IRUGO, show_abi_version, NULL);
static void ib_uverbs_add_one(struct ib_device *device)
{
int devnum;
+ dev_t base;
struct ib_uverbs_device *uverbs_dev;
if (!device->alloc_ucontext)
@@ -750,6 +751,7 @@ static void ib_uverbs_add_one(struct ib_device *device)
goto err;
}
uverbs_dev->devnum = devnum;
+ base = devnum + IB_UVERBS_BASE_DEV;
set_bit(devnum, dev_map);
spin_unlock(&map_lock);
@@ -760,7 +762,7 @@ static void ib_uverbs_add_one(struct ib_device *device)
uverbs_dev->cdev.owner = THIS_MODULE;
uverbs_dev->cdev.ops = device->mmap ? &uverbs_mmap_fops : &uverbs_fops;
kobject_set_name(&uverbs_dev->cdev.kobj, "uverbs%d", uverbs_dev->devnum);
- if (cdev_add(&uverbs_dev->cdev, IB_UVERBS_BASE_DEV + devnum, 1))
+ if (cdev_add(&uverbs_dev->cdev, base, 1))
goto err_cdev;
uverbs_dev->dev = device_create(uverbs_class, device->dma_device,