drivers/net: Convert unbounded kzalloc calls to kcalloc

These changes may be slightly safer in some instances.

There are other kzalloc calls with a multiply, but those
calls are typically "small fixed #" * sizeof(some pointer)"
and those are not converted.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/wireless/ipw2x00/ipw2100.c b/drivers/net/wireless/ipw2x00/ipw2100.c
index 1189dbb..0c67b17 100644
--- a/drivers/net/wireless/ipw2x00/ipw2100.c
+++ b/drivers/net/wireless/ipw2x00/ipw2100.c
@@ -1921,9 +1921,9 @@
 
 		bg_band->band = IEEE80211_BAND_2GHZ;
 		bg_band->n_channels = geo->bg_channels;
-		bg_band->channels =
-			kzalloc(geo->bg_channels *
-				sizeof(struct ieee80211_channel), GFP_KERNEL);
+		bg_band->channels = kcalloc(geo->bg_channels,
+					    sizeof(struct ieee80211_channel),
+					    GFP_KERNEL);
 		if (!bg_band->channels) {
 			ipw2100_down(priv);
 			return -ENOMEM;
diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c
index cb2552a..0f25083 100644
--- a/drivers/net/wireless/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/ipw2x00/ipw2200.c
@@ -11467,9 +11467,9 @@
 
 		bg_band->band = IEEE80211_BAND_2GHZ;
 		bg_band->n_channels = geo->bg_channels;
-		bg_band->channels =
-			kzalloc(geo->bg_channels *
-				sizeof(struct ieee80211_channel), GFP_KERNEL);
+		bg_band->channels = kcalloc(geo->bg_channels,
+					    sizeof(struct ieee80211_channel),
+					    GFP_KERNEL);
 		/* translate geo->bg to bg_band.channels */
 		for (i = 0; i < geo->bg_channels; i++) {
 			bg_band->channels[i].band = IEEE80211_BAND_2GHZ;
@@ -11502,9 +11502,9 @@
 
 		a_band->band = IEEE80211_BAND_5GHZ;
 		a_band->n_channels = geo->a_channels;
-		a_band->channels =
-			kzalloc(geo->a_channels *
-				sizeof(struct ieee80211_channel), GFP_KERNEL);
+		a_band->channels = kcalloc(geo->a_channels,
+					   sizeof(struct ieee80211_channel),
+					   GFP_KERNEL);
 		/* translate geo->bg to a_band.channels */
 		for (i = 0; i < geo->a_channels; i++) {
 			a_band->channels[i].band = IEEE80211_BAND_2GHZ;