From: Arend van Spriel <arend@broadcom.com>
Date: Fri, 5 Apr 2013 08:57:39 +0000 (+0200)
Subject: brcmfmac: fix unaligned access in TXSTATUS signal handling
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a2ffc5668e2742db7bae48ad6098e45f8d3ea19e;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

brcmfmac: fix unaligned access in TXSTATUS signal handling

reported by Hante. Needs to be squashed in commit 187fbcec.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 8ce79af47e66..451cfc1b2c47 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -1181,13 +1181,15 @@ static int brcmf_fws_fifocreditback_indicate(struct brcmf_fws_info *fws,
 
 static int brcmf_fws_txstatus_indicate(struct brcmf_fws_info *fws, u8 *data)
 {
+	__le32 status_le;
 	u32 status;
 	u32 hslot;
 	u32 genbit;
 	u8 flags;
 
 	fws->stats.txs_indicate++;
-	status = le32_to_cpu(*(__le32 *)data);
+	memcpy(&status_le, data, sizeof(status_le));
+	status = le32_to_cpu(status_le);
 	flags = brcmf_txstatus_get_field(status, FLAGS);
 	hslot = brcmf_txstatus_get_field(status, HSLOT);
 	genbit = brcmf_txstatus_get_field(status, GENERATION);