1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/isdn/capi/kcapi.c b/drivers/isdn/capi/kcapi.c
index f55531869313..ef6de217b9fc 100644
--- a/drivers/isdn/capi/kcapi.c
+++ b/drivers/isdn/capi/kcapi.c
@@ -826,7 +826,7 @@ static int old_capi_manufacturer(unsigned int cmd, void __user *data)
                 card = capi_ctr_get(card);
                 if (!card)
                         return -ESRCH;
-                if (card->load_firmware == 0) {
+                if (card->load_firmware == NULL) {
                         printk(KERN_DEBUG "kcapi: load: no load function\n");
                         return -ESRCH;
                 }
@@ -835,7 +835,7 @@ static int old_capi_manufacturer(unsigned int cmd, void __user *data)
                         printk(KERN_DEBUG "kcapi: load: invalid parameter: length of t4file is %d ?\n", ldef.t4file.len);
                         return -EINVAL;
                 }
-                if (ldef.t4file.data == 0) {
+                if (ldef.t4file.data == NULL) {
                         printk(KERN_DEBUG "kcapi: load: invalid parameter: dataptr is 0\n");
                         return -EINVAL;
                 }
@@ -951,7 +951,7 @@ int capi20_manufacturer(unsigned int cmd, void __user *data)
                         if (strcmp(driver->name, cdef.driver) == 0)
                                 break;
                 }
-                if (driver == 0) {
+                if (driver == NULL) {
                         printk(KERN_ERR "kcapi: driver \"%s\" not loaded.\n",
                                         cdef.driver);
                         return -ESRCH;
@@ -1004,9 +1004,9 @@ static int __init kcapi_init(void)
                 return ret;
         kcapi_proc_init();
 
-        if ((p = strchr(revision, ':')) != 0 && p[1]) {
+        if ((p = strchr(revision, ':')) != NULL && p[1]) {
                 strlcpy(rev, p + 2, sizeof(rev));
-                if ((p = strchr(rev, '$')) != 0 && p > rev)
+                if ((p = strchr(rev, '$')) != NULL && p > rev)
                    *(p-1) = 0;
         } else
                 strcpy(rev, "1.0");