drivers/net/wireless/wl12xx: Use kmemdup

Use kmemdup when some other buffer is immediately copied into the
allocated region.

A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression from,to,size,flag;
statement S;
@@

-  to = \(kmalloc\|kzalloc\)(size,flag);
+  to = kmemdup(from,size,flag);
   if (to==NULL || ...) S
-  memcpy(to, from, size);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Kalle Valo <kvalo@adurom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/wl12xx/wl1251_main.c b/drivers/net/wireless/wl12xx/wl1251_main.c
index 00b2428..c8f2689 100644 (file)
--- a/drivers/net/wireless/wl12xx/wl1251_main.c
+++ b/drivers/net/wireless/wl12xx/wl1251_main.c
@@ -124,7 +124,7 @@ static int wl1251_fetch_nvs(struct wl1251 *wl)
        }
 
        wl->nvs_len = fw->size;
-       wl->nvs = kmalloc(wl->nvs_len, GFP_KERNEL);
+       wl->nvs = kmemdup(fw->data, wl->nvs_len, GFP_KERNEL);
 
        if (!wl->nvs) {
                wl1251_error("could not allocate memory for the nvs file");
@@ -132,8 +132,6 @@ static int wl1251_fetch_nvs(struct wl1251 *wl)
                goto out;
        }
 
-       memcpy(wl->nvs, fw->data, wl->nvs_len);
-
        ret = 0;
 
 out: