[PATCH] yenta: no CardBus if IRQ fails

If probing for the correct interrupt fails on yenta bridges, the driver falls
back to polling for interrupt actions.  However, CardBus cards cannot be used
then.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 11 insertions, 4 deletions

diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index 4d1cc5304e17..e39178fc59d0 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -215,6 +215,13 @@ int pcmcia_register_socket(struct pcmcia_socket *socket)
         list_add_tail(&socket->socket_list, &pcmcia_socket_list);
         up_write(&pcmcia_socket_list_rwsem);
 
+#ifndef CONFIG_CARDBUS
+        /*
+         * If we do not support Cardbus, ensure that
+         * the Cardbus socket capability is disabled.
+         */
+        socket->features &= ~SS_CAP_CARDBUS;
+#endif
 
         /* set proper values in socket->dev */
         socket->dev.class_data = socket;
@@ -448,11 +455,11 @@ static int socket_setup(struct pcmcia_socket *skt, int initial_delay)
         }
 
         if (status & SS_CARDBUS) {
+                if (!(skt->features & SS_CAP_CARDBUS)) {
+                        cs_err(skt, "cardbus cards are not supported.\n");
+                        return CS_BAD_TYPE;
+                }
                 skt->state |= SOCKET_CARDBUS;
-#ifndef CONFIG_CARDBUS
-                cs_err(skt, "cardbus cards are not supported.\n");
-                return CS_BAD_TYPE;
-#endif
         }
 
         /*