[netdrvr] depca: handle platform_device_add() failure
The following patch fixes a kernel bug in depca_platform_probe().
We don't use a dynamic pointer for pldev->dev.platform_data, so it seems
that the correct way to proceed if platform_device_add(pldev) fails is
to explicitly set the pldev->dev.platform_data pointer to NULL, before
calling the platform_device_put(pldev), or it will be kfree'ed by
platform_device_release().
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/depca.c b/drivers/net/depca.c
index 5113eef..f3807aa 100644
--- a/drivers/net/depca.c
+++ b/drivers/net/depca.c
@@ -1491,8 +1491,9 @@
depca_io_ports[i].device = pldev;
if (platform_device_add(pldev)) {
- platform_device_put(pldev);
depca_io_ports[i].device = NULL;
+ pldev->dev.platform_data = NULL;
+ platform_device_put(pldev);
continue;
}