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/net/pcmcia/ibmtr_cs.c b/drivers/net/pcmcia/ibmtr_cs.c
index 4eafa4f..cf3cca4 100644
--- a/drivers/net/pcmcia/ibmtr_cs.c
+++ b/drivers/net/pcmcia/ibmtr_cs.c
@@ -238,7 +238,7 @@
     /* Try PRIMARY card at 0xA20-0xA23 */
     link->io.BasePort1 = 0xA20;
     i = pcmcia_request_io(link, &link->io);
-    if (i != CS_SUCCESS) {
+    if (i != 0) {
 	/* Couldn't get 0xA20-0xA23.  Try ALTERNATE at 0xA24-0xA27. */
 	link->io.BasePort1 = 0xA24;
 	CS_CHECK(RequestIO, pcmcia_request_io(link, &link->io));