pcmcia: limit pxa2xx_trizeps4 subdriver to trizeps4 platform

pxa2xx_trizeps4 tries to register pxa2xx-pcmcia device not checking whether
machine is really trizeps4, thus messing multi-machine kernels. Fix it up.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/pcmcia/pxa2xx_trizeps4.c b/drivers/pcmcia/pxa2xx_trizeps4.c
index b7e596620db1..5bb4e1a94d25 100644
--- a/drivers/pcmcia/pxa2xx_trizeps4.c
+++ b/drivers/pcmcia/pxa2xx_trizeps4.c
@@ -226,6 +226,9 @@ static int __init trizeps_pcmcia_init(void)
 {
         int ret;
 
+        if (!machine_is_trizeps4() && !machine_is_trizeps4wl())
+                return -ENODEV;
+
         trizeps_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
         if (!trizeps_pcmcia_device)
                 return -ENOMEM;