mwifiex: correct packet length for packets from SDIO interface

While receiving a packet on SDIO interface, we allocate skb with
size multiple of SDIO block size. We need to resize this skb
after RX using packet length from RX header.

Cc: <stable@vger.kernel.org>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c
index 1576104e3d9531ada721dc41ec5740f021345b83..9bf8898743ab3d8a31aaad7641ecad09204e0265 100644 (file)
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ b/drivers/net/wireless/mwifiex/sdio.c
@@ -1029,7 +1029,10 @@ static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter,
                                    struct sk_buff *skb, u32 upld_typ)
 {
        u8 *cmd_buf;
+       __le16 *curr_ptr = (__le16 *)skb->data;
+       u16 pkt_len = le16_to_cpu(*curr_ptr);
 
+       skb_trim(skb, pkt_len);
        skb_pull(skb, INTF_HEADER_LEN);
 
        switch (upld_typ) {