[ARM] pxa: avoid kfreeing static data if platform device fails to register

When a dynamically allocated platform device is 'put', the platform
device's platform_data is kfree'd.  This is bad if it's pointing at
static data.  Use the provided function to register platform data
for these devices.

This also means we can mark the pcmcia ops structures as __initdata.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 5 insertions, 4 deletions

diff --git a/drivers/pcmcia/pxa2xx_mainstone.c b/drivers/pcmcia/pxa2xx_mainstone.c
index 36a59960b5af..92d1cc33808c 100644
--- a/drivers/pcmcia/pxa2xx_mainstone.c
+++ b/drivers/pcmcia/pxa2xx_mainstone.c
@@ -137,7 +137,7 @@ static void mst_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
 {
 }
 
-static struct pcmcia_low_level mst_pcmcia_ops = {
+static struct pcmcia_low_level mst_pcmcia_ops __initdata = {
         .owner                  = THIS_MODULE,
         .hw_init                = mst_pcmcia_hw_init,
         .hw_shutdown            = mst_pcmcia_hw_shutdown,
@@ -161,9 +161,10 @@ static int __init mst_pcmcia_init(void)
         if (!mst_pcmcia_device)
                 return -ENOMEM;
 
-        mst_pcmcia_device->dev.platform_data = &mst_pcmcia_ops;
-
-        ret = platform_device_add(mst_pcmcia_device);
+        ret = platform_device_add_data(mst_pcmcia_device, &mst_pcmcia_ops,
+                                       sizeof(mst_pcmcia_ops));
+        if (ret == 0)
+                ret = platform_device_add(mst_pcmcia_device);
 
         if (ret)
                 platform_device_put(mst_pcmcia_device);