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iwmc3200wifi: Return proper error for iwm_if_alloc 

In the case of alloc_netdev_mq failure and kmalloc failure,
current implementation returns ERR_PTR(0).

As a result, the caller of iwm_if_alloc does not catch the error by IS_ERR
macro. Fix it by setting proper error code for ret variable in the failure
cases.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Axel Lin 2011-01-10 10:26:00 +08:00 committed by John W. Linville
parent 4e5518ca53
commit 35b3ac470b
1 changed files with 2 additions and 0 deletions
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2
drivers/net/wireless/iwmc3200wifi/netdev.c
View File

@ -126,6 +126,7 @@ void *iwm_if_alloc(int sizeof_bus, struct device *dev,
ndev = alloc_netdev_mq(0, "wlan%d", ether_setup, IWM_TX_QUEUES);
if (!ndev) {
dev_err(dev, "no memory for network device instance\n");
ret = -ENOMEM;
goto out_priv;
}
@ -138,6 +139,7 @@ void *iwm_if_alloc(int sizeof_bus, struct device *dev,
GFP_KERNEL);
if (!iwm->umac_profile) {
dev_err(dev, "Couldn't alloc memory for profile\n");
ret = -ENOMEM;
goto out_profile;
}