[ARM] Fix suspend oops caused by PXA2xx PCMCIA driver
The PXA2xx PCMCIA driver was registering a device_driver with the
platform_bus_type. Unfortunately, this causes data outside the
device_driver structure to be dereferenced as if it were a
platform_driver structure, causing an oops. Convert the PXA2xx
core driver to use the proper platform_driver structure.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/pcmcia/pxa2xx_base.c b/drivers/pcmcia/pxa2xx_base.c
index b351813..dca9f85 100644
--- a/drivers/pcmcia/pxa2xx_base.c
+++ b/drivers/pcmcia/pxa2xx_base.c
@@ -166,7 +166,7 @@
}
#endif
-int pxa2xx_drv_pcmcia_probe(struct device *dev)
+int __pxa2xx_drv_pcmcia_probe(struct device *dev)
{
int ret;
struct pcmcia_low_level *ops;
@@ -203,35 +203,52 @@
return ret;
}
-EXPORT_SYMBOL(pxa2xx_drv_pcmcia_probe);
+EXPORT_SYMBOL(__pxa2xx_drv_pcmcia_probe);
-static int pxa2xx_drv_pcmcia_resume(struct device *dev)
+
+static int pxa2xx_drv_pcmcia_probe(struct platform_device *dev)
{
- struct pcmcia_low_level *ops = dev->platform_data;
+ return __pxa2xx_drv_pcmcia_probe(&dev->dev);
+}
+
+static int pxa2xx_drv_pcmcia_remove(struct platform_device *dev)
+{
+ return soc_common_drv_pcmcia_remove(&dev->dev);
+}
+
+static int pxa2xx_drv_pcmcia_suspend(struct platform_device *dev, pm_message_t state)
+{
+ return pcmcia_socket_dev_suspend(&dev->dev, state);
+}
+
+static int pxa2xx_drv_pcmcia_resume(struct platform_device *dev)
+{
+ struct pcmcia_low_level *ops = dev->dev.platform_data;
int nr = ops ? ops->nr : 0;
MECR = nr > 1 ? MECR_CIT | MECR_NOS : (nr > 0 ? MECR_CIT : 0);
- return pcmcia_socket_dev_resume(dev);
+ return pcmcia_socket_dev_resume(&dev->dev);
}
-static struct device_driver pxa2xx_pcmcia_driver = {
+static struct platform_driver pxa2xx_pcmcia_driver = {
.probe = pxa2xx_drv_pcmcia_probe,
- .remove = soc_common_drv_pcmcia_remove,
- .suspend = pcmcia_socket_dev_suspend,
+ .remove = pxa2xx_drv_pcmcia_remove,
+ .suspend = pxa2xx_drv_pcmcia_suspend,
.resume = pxa2xx_drv_pcmcia_resume,
- .name = "pxa2xx-pcmcia",
- .bus = &platform_bus_type,
+ .driver = {
+ .name = "pxa2xx-pcmcia",
+ },
};
static int __init pxa2xx_pcmcia_init(void)
{
- return driver_register(&pxa2xx_pcmcia_driver);
+ return platform_driver_register(&pxa2xx_pcmcia_driver);
}
static void __exit pxa2xx_pcmcia_exit(void)
{
- driver_unregister(&pxa2xx_pcmcia_driver);
+ platform_driver_unregister(&pxa2xx_pcmcia_driver);
}
fs_initcall(pxa2xx_pcmcia_init);
diff --git a/drivers/pcmcia/pxa2xx_base.h b/drivers/pcmcia/pxa2xx_base.h
index e46cff3..235d681 100644
--- a/drivers/pcmcia/pxa2xx_base.h
+++ b/drivers/pcmcia/pxa2xx_base.h
@@ -1,3 +1,3 @@
/* temporary measure */
-extern int pxa2xx_drv_pcmcia_probe(struct device *);
+extern int __pxa2xx_drv_pcmcia_probe(struct device *);
diff --git a/drivers/pcmcia/pxa2xx_lubbock.c b/drivers/pcmcia/pxa2xx_lubbock.c
index fd1f691..a92f111 100644
--- a/drivers/pcmcia/pxa2xx_lubbock.c
+++ b/drivers/pcmcia/pxa2xx_lubbock.c
@@ -260,7 +260,7 @@
lubbock_set_misc_wr((1 << 15) | (1 << 14), 0);
sadev->dev.platform_data = &lubbock_pcmcia_ops;
- ret = pxa2xx_drv_pcmcia_probe(&sadev->dev);
+ ret = __pxa2xx_drv_pcmcia_probe(&sadev->dev);
}
return ret;