From patchwork Fri Jul 15 13:37:05 2016
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Subject: [2/2] mwifiex: update command response skb length correctly
From: Amitkumar Karwar <akarwar@marvell.com>
X-Patchwork-Id: 9232093
Message-Id: <1468589825-9188-2-git-send-email-akarwar@marvell.com>
To: <linux-wireless@vger.kernel.org>
Cc: Cathy Luo <cluo@marvell.com>, Nishant Sarmukadam <nishants@marvell.com>,
 Amitkumar Karwar <akarwar@marvell.com>
Date: Fri, 15 Jul 2016 19:07:05 +0530

Same skb is being reused for storing command response from firmware
in PCIe chipsets. There was a bug while updating the skb length.
This patch ensures skb length correctly gets updated based on rx_len.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
---
 drivers/net/wireless/marvell/mwifiex/pcie.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
index 38bd62e..a6af85d 100644
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
@@ -1616,6 +1616,7 @@ static int mwifiex_pcie_process_cmd_complete(struct mwifiex_adapter *adapter)
 
 	pkt_len = *((__le16 *)skb->data);
 	rx_len = le16_to_cpu(pkt_len);
+	skb_put(skb, MWIFIEX_UPLD_SIZE - skb->len);
 	skb_trim(skb, rx_len);
 	skb_pull(skb, INTF_HEADER_LEN);