diff options
| author | Tom Tucker <tom@opengridcomputing.com> | 2006-11-08 14:23:22 -0600 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-11-13 09:38:04 -0800 |
| commit | 2ffcab6ae44b02679229ca1852526d0a6e062dd2 (patch) | |
| tree | c99a55514f37f6c8b21e0879a247c508c9346bfd | |
| parent | f2c238a0c5e155acd49752c5fb93fb8d8534232b (diff) | |
| download | linux-3.10-2ffcab6ae44b02679229ca1852526d0a6e062dd2.tar.gz linux-3.10-2ffcab6ae44b02679229ca1852526d0a6e062dd2.tar.bz2 linux-3.10-2ffcab6ae44b02679229ca1852526d0a6e062dd2.zip | |
RDMA/amso1100: Fix unitialized pseudo_netdev accessed in c2_register_device
Rework some load-time error handling: c2_register_device() leaked when
it failed, and the function that called it didn't check the return code.
Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
| -rw-r--r-- | drivers/infiniband/hw/amso1100/c2.c | 3 | ||||
| -rw-r--r-- | drivers/infiniband/hw/amso1100/c2_provider.c | 39 |
2 files changed, 22 insertions, 20 deletions
diff --git a/drivers/infiniband/hw/amso1100/c2.c b/drivers/infiniband/hw/amso1100/c2.c index 9e7bd94b958..27fe242ed43 100644 --- a/drivers/infiniband/hw/amso1100/c2.c +++ b/drivers/infiniband/hw/amso1100/c2.c @@ -1155,7 +1155,8 @@ static int __devinit c2_probe(struct pci_dev *pcidev, goto bail10; } - c2_register_device(c2dev); + if (c2_register_device(c2dev)) + goto bail10; return 0; diff --git a/drivers/infiniband/hw/amso1100/c2_provider.c b/drivers/infiniband/hw/amso1100/c2_provider.c index da98d9f7142..fef97275291 100644 --- a/drivers/infiniband/hw/amso1100/c2_provider.c +++ b/drivers/infiniband/hw/amso1100/c2_provider.c @@ -757,20 +757,17 @@ static struct net_device *c2_pseudo_netdev_init(struct c2_dev *c2dev) int c2_register_device(struct c2_dev *dev) { - int ret; + int ret = -ENOMEM; int i; /* Register pseudo network device */ dev->pseudo_netdev = c2_pseudo_netdev_init(dev); - if (dev->pseudo_netdev) { - ret = register_netdev(dev->pseudo_netdev); - if (ret) { - printk(KERN_ERR PFX - "Unable to register netdev, ret = %d\n", ret); - free_netdev(dev->pseudo_netdev); - return ret; - } - } + if (!dev->pseudo_netdev) + goto out3; + + ret = register_netdev(dev->pseudo_netdev); + if (ret) + goto out2; pr_debug("%s:%u\n", __FUNCTION__, __LINE__); strlcpy(dev->ibdev.name, "amso%d", IB_DEVICE_NAME_MAX); @@ -848,21 +845,25 @@ int c2_register_device(struct c2_dev *dev) ret = ib_register_device(&dev->ibdev); if (ret) - return ret; + goto out1; for (i = 0; i < ARRAY_SIZE(c2_class_attributes); ++i) { ret = class_device_create_file(&dev->ibdev.class_dev, c2_class_attributes[i]); - if (ret) { - unregister_netdev(dev->pseudo_netdev); - free_netdev(dev->pseudo_netdev); - ib_unregister_device(&dev->ibdev); - return ret; - } + if (ret) + goto out0; } + goto out3; - pr_debug("%s:%u\n", __FUNCTION__, __LINE__); - return 0; +out0: + ib_unregister_device(&dev->ibdev); +out1: + unregister_netdev(dev->pseudo_netdev); +out2: + free_netdev(dev->pseudo_netdev); +out3: + pr_debug("%s:%u ret=%d\n", __FUNCTION__, __LINE__, ret); + return ret; } void c2_unregister_device(struct c2_dev *dev) |