diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
index 5bfb2a2041b8a8f4854fbaf7351e8a1739ea5db0..ef34de7a802606309fbaf02b8396456763fd4b62 100644
--- a/drivers/misc/lkdtm.c
+++ b/drivers/misc/lkdtm.c
@@ -124,9 +124,9 @@ static int count = DEFAULT_COUNT;
 module_param(recur_count, int, 0644);
 MODULE_PARM_DESC(recur_count, " Recursion level for the stack overflow test, "\
 				 "default is 10");
-module_param(cpoint_name, charp, 0644);
+module_param(cpoint_name, charp, 0444);
 MODULE_PARM_DESC(cpoint_name, " Crash Point, where kernel is to be crashed");
-module_param(cpoint_type, charp, 0644);
+module_param(cpoint_type, charp, 0444);
 MODULE_PARM_DESC(cpoint_type, " Crash Point Type, action to be taken on "\
 				"hitting the crash point");
 module_param(cpoint_count, int, 0644);
diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c
index 49ab9fa9ffa784833e08b170d009046c7dd7370a..ed7457bc24eafdc9978037800054d335a15a22e9 100644
--- a/drivers/staging/rtl8187se/r8180_core.c
+++ b/drivers/staging/rtl8187se/r8180_core.c
@@ -61,7 +61,7 @@ static struct pci_device_id rtl8180_pci_id_tbl[] __devinitdata = {
 };
 
 
-static char *ifname = "wlan%d";
+static char ifname[IFNAMSIZ] = "wlan%d";
 static int hwseqnum = 0;
 static int hwwep = 0;
 static int channels = 0x3fff;
@@ -72,7 +72,7 @@ MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
 MODULE_DESCRIPTION("Linux driver for Realtek RTL8180 / RTL8185 WiFi cards");
 
 
-module_param(ifname, charp, S_IRUGO|S_IWUSR);
+module_param_string(ifname, ifname, sizeof(ifname), S_IRUGO|S_IWUSR);
 module_param(hwseqnum, int, S_IRUGO|S_IWUSR);
 module_param(hwwep, int, S_IRUGO|S_IWUSR);
 module_param(channels, int, S_IRUGO|S_IWUSR);
@@ -3609,7 +3609,7 @@ static int __devinit rtl8180_pci_probe(struct pci_dev *pdev,
 
 	if (dev_alloc_name(dev, ifname) < 0) {
 		DMESG("Oops: devname already taken! Trying wlan%%d...\n");
-		ifname = "wlan%d";
+		strcpy(ifname, "wlan%d");
 		dev_alloc_name(dev, ifname);
 	}
 
diff --git a/drivers/staging/rtl8192e/r8192E_core.c b/drivers/staging/rtl8192e/r8192E_core.c
index 4cd071adf84b8f05052629616d5b3bf057568c8d..17a806f9ee7762de84a2588d2c2b3de7b3f9fe68 100644
--- a/drivers/staging/rtl8192e/r8192E_core.c
+++ b/drivers/staging/rtl8192e/r8192E_core.c
@@ -112,7 +112,7 @@ static const struct pci_device_id rtl8192_pci_id_tbl[] __devinitdata = {
 	{}
 };
 
-static char* ifname = "wlan%d";
+static char ifname[IFNAMSIZ] = "wlan%d";
 static int hwwep = 1; //default use hw. set 0 to use software security
 static int channels = 0x3fff;
 
@@ -123,7 +123,7 @@ MODULE_DEVICE_TABLE(pci, rtl8192_pci_id_tbl);
 MODULE_DESCRIPTION("Linux driver for Realtek RTL819x WiFi cards");
 
 
-module_param(ifname, charp, S_IRUGO|S_IWUSR );
+module_param_string(ifname, ifname, sizeof(ifname), S_IRUGO|S_IWUSR);
 //module_param(hwseqnum,int, S_IRUGO|S_IWUSR);
 module_param(hwwep,int, S_IRUGO|S_IWUSR);
 module_param(channels,int, S_IRUGO|S_IWUSR);
@@ -6446,7 +6446,7 @@ static int __devinit rtl8192_pci_probe(struct pci_dev *pdev,
 
 	if (dev_alloc_name(dev, ifname) < 0){
                 RT_TRACE(COMP_INIT, "Oops: devname already taken! Trying wlan%%d...\n");
-		ifname = "wlan%d";
+		strcpy(ifname, "wlan%d");
 		dev_alloc_name(dev, ifname);
         }
 
diff --git a/drivers/staging/rtl8192su/r8192U_core.c b/drivers/staging/rtl8192su/r8192U_core.c
index 6970c97713d8e8611df165dbfaafaf3489bc995e..df5b52baf89396ae77923f0913941fd9dfd7c8e1 100644
--- a/drivers/staging/rtl8192su/r8192U_core.c
+++ b/drivers/staging/rtl8192su/r8192U_core.c
@@ -144,13 +144,13 @@ MODULE_VERSION("V 1.1");
 MODULE_DEVICE_TABLE(usb, rtl8192_usb_id_tbl);
 MODULE_DESCRIPTION("Linux driver for Realtek RTL8192 USB WiFi cards");
 
-static char* ifname = "wlan%d";
+static char ifname[IFNAMSIZ] = "wlan%d";
 static int hwwep = 1;  //default use hw. set 0 to use software security
 static int channels = 0x3fff;
 
 
 
-module_param(ifname, charp, S_IRUGO|S_IWUSR );
+module_param_string(ifname, ifname, sizeof(ifname), S_IRUGO|S_IWUSR);
 //module_param(hwseqnum,int, S_IRUGO|S_IWUSR);
 module_param(hwwep,int, S_IRUGO|S_IWUSR);
 module_param(channels,int, S_IRUGO|S_IWUSR);
@@ -7406,7 +7406,7 @@ static int __devinit rtl8192_usb_probe(struct usb_interface *intf,
 
 	if (dev_alloc_name(dev, ifname) < 0){
                 RT_TRACE(COMP_INIT, "Oops: devname already taken! Trying wlan%%d...\n");
-		ifname = "wlan%d";
+		strcpy(ifname, "wlan%d");
 		dev_alloc_name(dev, ifname);
         }