wireless: ERR_PTR vs null

iwm_wdev_alloc() returns an ERR_PTR on failure and not null.  It also
prints its own dev_err() message so I removed that as well.

Compile tested only.  Sorry.
Found by smatch (http://repo.or.cz/w/smatch.git).

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwmc3200wifi/netdev.c b/drivers/net/wireless/iwmc3200wifi/netdev.c
index aea5ccf..bf294e4 100644 (file)
--- a/drivers/net/wireless/iwmc3200wifi/netdev.c
+++ b/drivers/net/wireless/iwmc3200wifi/netdev.c
@@ -106,10 +106,8 @@ void *iwm_if_alloc(int sizeof_bus, struct device *dev,
        int ret = 0;
 
        wdev = iwm_wdev_alloc(sizeof_bus, dev);
-       if (!wdev) {
-               dev_err(dev, "no memory for wireless device instance\n");
-               return ERR_PTR(-ENOMEM);
-       }
+       if (IS_ERR(wdev))
+               return wdev;
 
        iwm = wdev_to_iwm(wdev);
        iwm->bus_ops = if_ops;