[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, 7 insertions, 4 deletions

diff --git a/drivers/pcmcia/pxa2xx_cm_x270.c b/drivers/pcmcia/pxa2xx_cm_x270.c
index 4a6c020afb37..f123fce65f2e 100644
--- a/drivers/pcmcia/pxa2xx_cm_x270.c
+++ b/drivers/pcmcia/pxa2xx_cm_x270.c
@@ -131,7 +131,7 @@ static void cmx270_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
 }
 
 
-static struct pcmcia_low_level cmx270_pcmcia_ops = {
+static struct pcmcia_low_level cmx270_pcmcia_ops __initdata = {
         .owner                  = THIS_MODULE,
         .hw_init                = cmx270_pcmcia_hw_init,
         .hw_shutdown            = cmx270_pcmcia_shutdown,
@@ -156,10 +156,13 @@ static int __init cmx270_pcmcia_init(void)
         if (!cmx270_pcmcia_device)
                 return -ENOMEM;
 
-        cmx270_pcmcia_device->dev.platform_data = &cmx270_pcmcia_ops;
+        ret = platform_device_add_data(cmx270_pcmcia_device, &cmx270_pcmcia_ops,
+                                       sizeof(cmx270_pcmcia_ops));
 
-        printk(KERN_INFO "Registering cm-x270 PCMCIA interface.\n");
-        ret = platform_device_add(cmx270_pcmcia_device);
+        if (ret == 0) {
+                printk(KERN_INFO "Registering cm-x270 PCMCIA interface.\n");
+                ret = platform_device_add(cmx270_pcmcia_device);
+        }
 
         if (ret)
                 platform_device_put(cmx270_pcmcia_device);