avm: fix sparse warning using integer as NULL pointer

drivers/isdn/hardware/avm/b1isa.c:206:37: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/b1isa.c:208:33: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/b1.c:664:42: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/b1.c:666:44: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/b1.c:668:42: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/b1.c:791:37: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/b1.c:793:33: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/b1pci.c:385:37: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/b1pci.c:387:33: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/b1dma.c:886:42: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/b1dma.c:888:44: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/b1dma.c:890:42: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/b1dma.c:973:37: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/b1dma.c:975:33: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/b1pcmcia.c:204:37: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/b1pcmcia.c:206:33: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/t1isa.c:554:37: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/t1isa.c:556:33: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/t1pci.c:236:37: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/t1pci.c:238:33: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/c4.c:1091:42: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/c4.c:1093:44: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/c4.c:1095:42: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/c4.c:1170:21: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/c4.c:1294:37: warning: Using plain integer as NULL pointer
drivers/isdn/hardware/avm/c4.c:1296:33: warning: Using plain integer as NULL pointer

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Karsten Keil <kkeil@suse.de>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/isdn/hardware/avm/b1dma.c b/drivers/isdn/hardware/avm/b1dma.c
index 669f6f67449c..da34b98e3de7 100644
--- a/drivers/isdn/hardware/avm/b1dma.c
+++ b/drivers/isdn/hardware/avm/b1dma.c
@@ -883,11 +883,11 @@ int b1dmactl_read_proc(char *page, char **start, off_t off,
         default: s = "???"; break;
         }
         len += sprintf(page+len, "%-16s %s\n", "type", s);
-        if ((s = cinfo->version[VER_DRIVER]) != 0)
+        if ((s = cinfo->version[VER_DRIVER]) != NULL)
            len += sprintf(page+len, "%-16s %s\n", "ver_driver", s);
-        if ((s = cinfo->version[VER_CARDTYPE]) != 0)
+        if ((s = cinfo->version[VER_CARDTYPE]) != NULL)
            len += sprintf(page+len, "%-16s %s\n", "ver_cardtype", s);
-        if ((s = cinfo->version[VER_SERIAL]) != 0)
+        if ((s = cinfo->version[VER_SERIAL]) != NULL)
            len += sprintf(page+len, "%-16s %s\n", "ver_serial", s);
 
         if (card->cardtype != avm_m1) {
@@ -970,9 +970,9 @@ static int __init b1dma_init(void)
         char *p;
         char rev[32];
 
-        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");