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>
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@ -206,6 +206,8 @@ static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv,
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cmd_node->cmd_skb->data,
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cmd_node->cmd_skb->data,
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cmd_node->cmd_skb->len, NULL);
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cmd_node->cmd_skb->len, NULL);
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skb_pull(cmd_node->cmd_skb, INTF_HEADER_LEN);
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if (ret == -1) {
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if (ret == -1) {
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dev_err(adapter->dev, "DNLD_CMD: host to card failed\n");
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dev_err(adapter->dev, "DNLD_CMD: host to card failed\n");
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if (wait_queue)
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if (wait_queue)
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