[PATCH] PNP: handle sysfs errors

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 35 insertions, 12 deletions

diff --git a/drivers/pnp/card.c b/drivers/pnp/card.c
index 227600cd6360..91c047a7e635 100644
--- a/drivers/pnp/card.c
+++ b/drivers/pnp/card.c
@@ -164,9 +164,17 @@ static DEVICE_ATTR(card_id,S_IRUGO,pnp_show_card_ids,NULL);
 
 static int pnp_interface_attach_card(struct pnp_card *card)
 {
-        device_create_file(&card->dev,&dev_attr_name);
-        device_create_file(&card->dev,&dev_attr_card_id);
+        int rc = device_create_file(&card->dev,&dev_attr_name);
+        if (rc) return rc;
+
+        rc = device_create_file(&card->dev,&dev_attr_card_id);
+        if (rc) goto err_name;
+
         return 0;
+
+err_name:
+        device_remove_file(&card->dev,&dev_attr_name);
+        return rc;
 }
 
 /**
@@ -306,16 +314,20 @@ found:
         down_write(&dev->dev.bus->subsys.rwsem);
         dev->card_link = clink;
         dev->dev.driver = &drv->link.driver;
-        if (pnp_bus_type.probe(&dev->dev)) {
-                dev->dev.driver = NULL;
-                dev->card_link = NULL;
-                up_write(&dev->dev.bus->subsys.rwsem);
-                return NULL;
-        }
-        device_bind_driver(&dev->dev);
+        if (pnp_bus_type.probe(&dev->dev))
+                goto err_out;
+        if (device_bind_driver(&dev->dev))
+                goto err_out;
+
         up_write(&dev->dev.bus->subsys.rwsem);
 
         return dev;
+
+err_out:
+        dev->dev.driver = NULL;
+        dev->card_link = NULL;
+        up_write(&dev->dev.bus->subsys.rwsem);
+        return NULL;
 }
 
 /**
diff --git a/drivers/pnp/interface.c b/drivers/pnp/interface.c
index 9d8b415eca79..ac9fcd499f3f 100644
--- a/drivers/pnp/interface.c
+++ b/drivers/pnp/interface.c
@@ -461,8 +461,19 @@ static DEVICE_ATTR(id,S_IRUGO,pnp_show_current_ids,NULL);
 
 int pnp_interface_attach_device(struct pnp_dev *dev)
 {
-        device_create_file(&dev->dev,&dev_attr_options);
-        device_create_file(&dev->dev,&dev_attr_resources);
-        device_create_file(&dev->dev,&dev_attr_id);
+        int rc = device_create_file(&dev->dev,&dev_attr_options);
+        if (rc) goto err;
+        rc = device_create_file(&dev->dev,&dev_attr_resources);
+        if (rc) goto err_opt;
+        rc = device_create_file(&dev->dev,&dev_attr_id);
+        if (rc) goto err_res;
+
         return 0;
+
+err_res:
+        device_remove_file(&dev->dev,&dev_attr_resources);
+err_opt:
+        device_remove_file(&dev->dev,&dev_attr_options);
+err:
+        return rc;
 }