[PATCH] wireless: libertas: fix unaligned accesses

Mike Frysinger vapier at gentoo.org
Tue May 26 06:26:22 EDT 2009


From: Cliff Cai <cliff.cai at analog.com>

Signed-off-by: Cliff Cai <cliff.cai at analog.com>
Signed-off-by: Mike Frysinger <vapier at gentoo.org>
Signed-off-by: Bryan Wu <cooloney at kernel.org>
---
 drivers/net/wireless/libertas/cmdresp.c |   10 +++++-----
 drivers/net/wireless/libertas/scan.c    |    3 ++-
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/libertas/cmdresp.c b/drivers/net/wireless/libertas/cmdresp.c
index bcf2a97..9154f40 100644
--- a/drivers/net/wireless/libertas/cmdresp.c
+++ b/drivers/net/wireless/libertas/cmdresp.c
@@ -5,7 +5,7 @@
 #include <linux/delay.h>
 #include <linux/if_arp.h>
 #include <linux/netdevice.h>
-
+#include <asm/unaligned.h>
 #include <net/iw_handler.h>
 
 #include "host.h"
@@ -154,11 +154,11 @@ static int lbs_ret_802_11_rssi(struct lbs_private *priv,
 	lbs_deb_enter(LBS_DEB_CMD);
 
 	/* store the non average value */
-	priv->SNR[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->SNR);
-	priv->NF[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->noisefloor);
+	priv->SNR[TYPE_BEACON][TYPE_NOAVG] = get_unaligned_le16(&(rssirsp->SNR));
+	priv->NF[TYPE_BEACON][TYPE_NOAVG] = get_unaligned_le16(&(rssirsp->noisefloor));
 
-	priv->SNR[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgSNR);
-	priv->NF[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgnoisefloor);
+	priv->SNR[TYPE_BEACON][TYPE_AVG] = get_unaligned_le16(&(rssirsp->avgSNR));
+	priv->NF[TYPE_BEACON][TYPE_AVG] = get_unaligned_le16(&(rssirsp->avgnoisefloor));
 
 	priv->RSSI[TYPE_BEACON][TYPE_NOAVG] =
 	    CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_NOAVG],
diff --git a/drivers/net/wireless/libertas/scan.c b/drivers/net/wireless/libertas/scan.c
index 8124db3..cc5c3ff 100644
--- a/drivers/net/wireless/libertas/scan.c
+++ b/drivers/net/wireless/libertas/scan.c
@@ -1130,7 +1130,8 @@ static int lbs_ret_80211_scan(struct lbs_private *priv, unsigned long dummy,
 		goto done;
 	}
 
-	bytesleft = le16_to_cpu(scanresp->bssdescriptsize);
+	/*bytesleft = le16_to_cpu(scanresp->bssdescriptsize);*/
+	bytesleft = get_unaligned_le16(&(scanresp->bssdescriptsize));
 	lbs_deb_scan("SCAN_RESP: bssdescriptsize %d\n", bytesleft);
 
 	scanrespsize = le16_to_cpu(resp->size);
-- 
1.6.3.1




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