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mwifiex: fix cmd_skb headroom decreasing issue 

Before calling host_to_card() to send the cmd to firmware,
we use skb_push() to add 4 bytes SDIO interface header at
the start of the data buffer. Since cmd_skb data structure
will be re-used at a later time, we need to restore its
headroom by removing the 4 bytes header.

Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Marc Yang <yangyang@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Bing Zhao 2011-04-06 16:46:55 -07:00 committed by John W. Linville
parent d88525e8fd
commit 18bf965702
1 changed files with 2 additions and 0 deletions
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2
drivers/net/wireless/mwifiex/cmdevt.c
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@ -206,6 +206,8 @@ static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv,
cmd_node->cmd_skb->data,
cmd_node->cmd_skb->len, NULL);
skb_pull(cmd_node->cmd_skb, INTF_HEADER_LEN);
if (ret == -1) {
dev_err(adapter->dev, "DNLD_CMD: host to card failed\n");
if (wait_queue)