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wl18xx: alloc conf.phy memory to ensure alignemnt 

We get DMA alignment trouble if the beginning of the conf.phy struct is
not aligned to 4 bytes. Use kmemdup to ensure alignment.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Arik Nemtsov 2012-07-05 17:30:58 +03:00 committed by Luciano Coelho
parent 097b0e1bf1
commit 45777c49ec
1 changed files with 10 additions and 2 deletions
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12
drivers/net/wireless/ti/wl18xx/main.c
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@ -772,16 +772,24 @@ out:
static int wl18xx_set_mac_and_phy(struct wl1271 *wl)
{
struct wl18xx_priv *priv = wl->priv;
struct wl18xx_mac_and_phy_params *params;
int ret;
params = kmemdup(&priv->conf.phy, sizeof(*params), GFP_KERNEL);
if (!params) {
ret = -ENOMEM;
goto out;
}
ret = wlcore_set_partition(wl, &wl->ptable[PART_PHY_INIT]);
if (ret < 0)
goto out;
ret = wlcore_write(wl, WL18XX_PHY_INIT_MEM_ADDR, (u8 *)&priv->conf.phy,
sizeof(struct wl18xx_mac_and_phy_params), false);
ret = wlcore_write(wl, WL18XX_PHY_INIT_MEM_ADDR, params,
sizeof(*params), false);
out:
kfree(params);
return ret;
}