isdn/capi: Return proper errnos on module init.

cdebug_init() is called from kcapi_init() which is module
initialization function, so it must return negative values on errors.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/isdn/capi/capiutil.c

diff --git a/drivers/isdn/capi/capiutil.c b/drivers/isdn/capi/capiutil.c
index ebef4ce..29419a8 100644
--- a/drivers/isdn/capi/capiutil.c
+++ b/drivers/isdn/capi/capiutil.c
@@ -948,17 +948,17 @@
 {
 	g_cmsg= kmalloc(sizeof(_cmsg), GFP_KERNEL);
 	if (!g_cmsg)
-		return ENOMEM;
+		return -ENOMEM;
 	g_debbuf = kmalloc(sizeof(_cdebbuf), GFP_KERNEL);
 	if (!g_debbuf) {
 		kfree(g_cmsg);
-		return ENOMEM;
+		return -ENOMEM;
 	}
 	g_debbuf->buf = kmalloc(CDEBUG_GSIZE, GFP_KERNEL);
 	if (!g_debbuf->buf) {
 		kfree(g_cmsg);
 		kfree(g_debbuf);
-		return ENOMEM;;
+		return -ENOMEM;;
 	}
 	g_debbuf->size = CDEBUG_GSIZE;
 	g_debbuf->buf[0] = 0;