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Date:	Thu, 10 Sep 2015 13:27:54 +0300
From:	Mike Rapoport <mike.rapoport@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Johnny Kim <johnny.kim@...el.com>,
	Rachel Kim <rachel.kim@...el.com>,
	Chris Park <chris.park@...el.com>,
	Tony Cho <tony.cho@...el.com>, Glen Lee <glen.lee@...el.com>,
	Leo Kim <leo.kim@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Mike Rapoport <mike.rapoport@...il.com>
Subject: [PATCH 2/5] staging: wilc1000: wilc_wfi_cfgoperations.c: replace WILC_MALLOC with kmalloc

WILC_MALLOC(size) is wrapping a call to kmalloc(size, GFP_ATOMIC) with a
check for 'size > 0', which kmalloc handles anyway

The semantic patch that makes this change is as follows:

@@
expression v, s;
type t;
identifier i;
@@
(
- v = WILC_MALLOC(s);
+ v = kmalloc(s, GFP_ATOMIC);
|
- t i = WILC_MALLOC(s);
+ t i = kmalloc(s, GFP_ATOMIC);
)

Signed-off-by: Mike Rapoport <mike.rapoport@...il.com>
---
 drivers/staging/wilc1000/wilc_wfi_cfgoperations.c | 56 +++++++++++++++--------
 1 file changed, 36 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
index cf76a33..ed60e2a 100644
--- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
+++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
@@ -341,8 +341,8 @@ void add_network_to_shadow(tstrNetworkInfo *pstrNetworkInfo, void *pUserVoid, vo
 	astrLastScannedNtwrksShadow[ap_index].u64Tsf = pstrNetworkInfo->u64Tsf;
 	if (ap_found != -1)
 		kfree(astrLastScannedNtwrksShadow[ap_index].pu8IEs);
-	astrLastScannedNtwrksShadow[ap_index].pu8IEs =
-		WILC_MALLOC(pstrNetworkInfo->u16IEsLen);        /* will be deallocated by the WILC_WFI_CfgScan() function */
+	astrLastScannedNtwrksShadow[ap_index].pu8IEs = kmalloc(pstrNetworkInfo->u16IEsLen,
+							       GFP_ATOMIC);        /* will be deallocated by the WILC_WFI_CfgScan() function */
 	memcpy(astrLastScannedNtwrksShadow[ap_index].pu8IEs,
 		    pstrNetworkInfo->pu8IEs, pstrNetworkInfo->u16IEsLen);
 
@@ -763,7 +763,8 @@ static int WILC_WFI_CfgScan(struct wiphy *wiphy, struct cfg80211_scan_request *r
 		if (request->n_ssids >= 1) {
 
 
-			strHiddenNetwork.pstrHiddenNetworkInfo = WILC_MALLOC(request->n_ssids * sizeof(tstrHiddenNetwork));
+			strHiddenNetwork.pstrHiddenNetworkInfo = kmalloc(request->n_ssids * sizeof(tstrHiddenNetwork),
+									 GFP_ATOMIC);
 			strHiddenNetwork.u8ssidnum = request->n_ssids;
 
 
@@ -771,7 +772,8 @@ static int WILC_WFI_CfgScan(struct wiphy *wiphy, struct cfg80211_scan_request *r
 			for (i = 0; i < request->n_ssids; i++) {
 
 				if (request->ssids[i].ssid != NULL && request->ssids[i].ssid_len != 0) {
-					strHiddenNetwork.pstrHiddenNetworkInfo[i].pu8ssid = WILC_MALLOC(request->ssids[i].ssid_len);
+					strHiddenNetwork.pstrHiddenNetworkInfo[i].pu8ssid = kmalloc(request->ssids[i].ssid_len,
+												    GFP_ATOMIC);
 					memcpy(strHiddenNetwork.pstrHiddenNetworkInfo[i].pu8ssid, request->ssids[i].ssid, request->ssids[i].ssid_len);
 					strHiddenNetwork.pstrHiddenNetworkInfo[i].u8ssidlen = request->ssids[i].ssid_len;
 				} else {
@@ -927,7 +929,8 @@ static int WILC_WFI_CfgConnect(struct wiphy *wiphy, struct net_device *dev,
 
 			/*BugID_5137*/
 			g_key_wep_params.key_len = sme->key_len;
-			g_key_wep_params.key = WILC_MALLOC(sme->key_len);
+			g_key_wep_params.key = kmalloc(sme->key_len,
+						       GFP_ATOMIC);
 			memcpy(g_key_wep_params.key, sme->key, sme->key_len);
 			g_key_wep_params.key_idx = sme->key_idx;
 			g_wep_keys_saved = true;
@@ -945,7 +948,8 @@ static int WILC_WFI_CfgConnect(struct wiphy *wiphy, struct net_device *dev,
 
 			/*BugID_5137*/
 			g_key_wep_params.key_len = sme->key_len;
-			g_key_wep_params.key = WILC_MALLOC(sme->key_len);
+			g_key_wep_params.key = kmalloc(sme->key_len,
+						       GFP_ATOMIC);
 			memcpy(g_key_wep_params.key, sme->key, sme->key_len);
 			g_key_wep_params.key_idx = sme->key_idx;
 			g_wep_keys_saved = true;
@@ -1199,13 +1203,15 @@ static int WILC_WFI_add_key(struct wiphy *wiphy, struct net_device *netdev, u8 k
 		if (priv->wdev->iftype == NL80211_IFTYPE_AP || priv->wdev->iftype == NL80211_IFTYPE_P2P_GO) {
 
 			if (priv->wilc_gtk[key_index] == NULL) {
-				priv->wilc_gtk[key_index] = WILC_MALLOC(sizeof(struct wilc_wfi_key));
+				priv->wilc_gtk[key_index] = kmalloc(sizeof(struct wilc_wfi_key),
+								    GFP_ATOMIC);
 				priv->wilc_gtk[key_index]->key = NULL;
 				priv->wilc_gtk[key_index]->seq = NULL;
 
 			}
 			if (priv->wilc_ptk[key_index] == NULL) {
-				priv->wilc_ptk[key_index] = WILC_MALLOC(sizeof(struct wilc_wfi_key));
+				priv->wilc_ptk[key_index] = kmalloc(sizeof(struct wilc_wfi_key),
+								    GFP_ATOMIC);
 				priv->wilc_ptk[key_index]->key = NULL;
 				priv->wilc_ptk[key_index]->seq = NULL;
 			}
@@ -1230,7 +1236,8 @@ static int WILC_WFI_add_key(struct wiphy *wiphy, struct net_device *netdev, u8 k
 				if (priv->wilc_gtk[key_index]->key)
 					kfree(priv->wilc_gtk[key_index]->key);
 
-				priv->wilc_gtk[key_index]->key = WILC_MALLOC(params->key_len);
+				priv->wilc_gtk[key_index]->key = kmalloc(params->key_len,
+									 GFP_ATOMIC);
 				memcpy(priv->wilc_gtk[key_index]->key, params->key, params->key_len);
 
 				/* if there has been previous allocation for the same index through its seq, free that memory and allocate again*/
@@ -1238,7 +1245,8 @@ static int WILC_WFI_add_key(struct wiphy *wiphy, struct net_device *netdev, u8 k
 					kfree(priv->wilc_gtk[key_index]->seq);
 
 				if ((params->seq_len) > 0) {
-					priv->wilc_gtk[key_index]->seq = WILC_MALLOC(params->seq_len);
+					priv->wilc_gtk[key_index]->seq = kmalloc(params->seq_len,
+										 GFP_ATOMIC);
 					memcpy(priv->wilc_gtk[key_index]->seq, params->seq, params->seq_len);
 				}
 
@@ -1276,13 +1284,15 @@ static int WILC_WFI_add_key(struct wiphy *wiphy, struct net_device *netdev, u8 k
 				if (priv->wilc_ptk[key_index]->key)
 					kfree(priv->wilc_ptk[key_index]->key);
 
-				priv->wilc_ptk[key_index]->key = WILC_MALLOC(params->key_len);
+				priv->wilc_ptk[key_index]->key = kmalloc(params->key_len,
+									 GFP_ATOMIC);
 
 				if (priv->wilc_ptk[key_index]->seq)
 					kfree(priv->wilc_ptk[key_index]->seq);
 
 				if ((params->seq_len) > 0)
-					priv->wilc_ptk[key_index]->seq = WILC_MALLOC(params->seq_len);
+					priv->wilc_ptk[key_index]->seq = kmalloc(params->seq_len,
+										 GFP_ATOMIC);
 
 				if (INFO) {
 					for (i = 0; i < params->key_len; i++)
@@ -1326,15 +1336,18 @@ static int WILC_WFI_add_key(struct wiphy *wiphy, struct net_device *netdev, u8 k
 					if (!mac_addr) {
 						g_add_gtk_key_params.mac_addr = NULL;
 					} else {
-						g_add_gtk_key_params.mac_addr = WILC_MALLOC(ETH_ALEN);
+						g_add_gtk_key_params.mac_addr = kmalloc(ETH_ALEN,
+											GFP_ATOMIC);
 						memcpy(g_add_gtk_key_params.mac_addr, mac_addr, ETH_ALEN);
 					}
 					g_key_gtk_params.key_len = params->key_len;
 					g_key_gtk_params.seq_len = params->seq_len;
-					g_key_gtk_params.key =  WILC_MALLOC(params->key_len);
+					g_key_gtk_params.key = kmalloc(params->key_len,
+								       GFP_ATOMIC);
 					memcpy(g_key_gtk_params.key, params->key, params->key_len);
 					if (params->seq_len > 0) {
-						g_key_gtk_params.seq =  WILC_MALLOC(params->seq_len);
+						g_key_gtk_params.seq = kmalloc(params->seq_len,
+									       GFP_ATOMIC);
 						memcpy(g_key_gtk_params.seq, params->seq, params->seq_len);
 					}
 					g_key_gtk_params.cipher = params->cipher;
@@ -1363,15 +1376,18 @@ static int WILC_WFI_add_key(struct wiphy *wiphy, struct net_device *netdev, u8 k
 					if (!mac_addr) {
 						g_add_ptk_key_params.mac_addr = NULL;
 					} else {
-						g_add_ptk_key_params.mac_addr = WILC_MALLOC(ETH_ALEN);
+						g_add_ptk_key_params.mac_addr = kmalloc(ETH_ALEN,
+											GFP_ATOMIC);
 						memcpy(g_add_ptk_key_params.mac_addr, mac_addr, ETH_ALEN);
 					}
 					g_key_ptk_params.key_len = params->key_len;
 					g_key_ptk_params.seq_len = params->seq_len;
-					g_key_ptk_params.key =  WILC_MALLOC(params->key_len);
+					g_key_ptk_params.key = kmalloc(params->key_len,
+								       GFP_ATOMIC);
 					memcpy(g_key_ptk_params.key, params->key, params->key_len);
 					if (params->seq_len > 0) {
-						g_key_ptk_params.seq =  WILC_MALLOC(params->seq_len);
+						g_key_ptk_params.seq = kmalloc(params->seq_len,
+									       GFP_ATOMIC);
 						memcpy(g_key_ptk_params.seq, params->seq, params->seq_len);
 					}
 					g_key_ptk_params.cipher = params->cipher;
@@ -2525,12 +2541,12 @@ int WILC_WFI_mgmt_tx(struct wiphy *wiphy,
 	if (ieee80211_is_mgmt(mgmt->frame_control)) {
 
 		/*mgmt frame allocation*/
-		mgmt_tx = WILC_MALLOC(sizeof(struct p2p_mgmt_data));
+		mgmt_tx = kmalloc(sizeof(struct p2p_mgmt_data), GFP_ATOMIC);
 		if (mgmt_tx == NULL) {
 			PRINT_ER("Failed to allocate memory for mgmt_tx structure\n");
 			return WILC_FAIL;
 		}
-		mgmt_tx->buff = WILC_MALLOC(buf_len);
+		mgmt_tx->buff = kmalloc(buf_len, GFP_ATOMIC);
 		if (mgmt_tx->buff == NULL) {
 			PRINT_ER("Failed to allocate memory for mgmt_tx buff\n");
 			kfree(mgmt_tx);
-- 
2.1.0

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