pcmcia: deprecate CS_SUCCESS

Instead of using own error or success codes, the PCMCIA code should rely on
the generic return values. Therefore, replace all occurrences of CS_SUCCESS
with 0.

CC: netdev@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
diff --git a/drivers/isdn/hisax/elsa_cs.c b/drivers/isdn/hisax/elsa_cs.c
index 2bf0016..f4d0fe2 100644
--- a/drivers/isdn/hisax/elsa_cs.c
+++ b/drivers/isdn/hisax/elsa_cs.c
@@ -238,20 +238,20 @@
     dev = link->priv;
 
     i = pcmcia_loop_config(link, elsa_cs_configcheck, NULL);
-    if (i != CS_SUCCESS) {
+    if (i != 0) {
 	last_fn = RequestIO;
 	goto cs_failed;
     }
 
     i = pcmcia_request_irq(link, &link->irq);
-    if (i != CS_SUCCESS) {
+    if (i != 0) {
         link->irq.AssignedIRQ = 0;
 	last_fn = RequestIRQ;
         goto cs_failed;
     }
 
     i = pcmcia_request_configuration(link, &link->conf);
-    if (i != CS_SUCCESS) {
+    if (i != 0) {
       last_fn = RequestConfiguration;
       goto cs_failed;
     }