[PATCH] PCMCIA: handle sysfs, PCI errors

Handle sysfs and PCI errors correctly.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

2 files changed, 21 insertions, 6 deletions

diff --git a/drivers/pcmcia/pcmcia_ioctl.c b/drivers/pcmcia/pcmcia_ioctl.c
index 9ad18e62658d..310ede575caa 100644
--- a/drivers/pcmcia/pcmcia_ioctl.c
+++ b/drivers/pcmcia/pcmcia_ioctl.c
@@ -128,9 +128,12 @@ static int proc_read_drivers(char *buf, char **start, off_t pos,
                              int count, int *eof, void *data)
 {
         char *p = buf;
+        int rc;
 
-        bus_for_each_drv(&pcmcia_bus_type, NULL,
-                         (void *) &p, proc_read_drivers_callback);
+        rc = bus_for_each_drv(&pcmcia_bus_type, NULL,
+                              (void *) &p, proc_read_drivers_callback);
+        if (rc < 0)
+                return rc;
 
         return (p - buf);
 }
@@ -269,8 +272,10 @@ rescan:
          * Prevent this racing with a card insertion.
          */
         mutex_lock(&s->skt_mutex);
-        bus_rescan_devices(&pcmcia_bus_type);
+        ret = bus_rescan_devices(&pcmcia_bus_type);
         mutex_unlock(&s->skt_mutex);
+        if (ret)
+                goto err_put_module;
 
         /* check whether the driver indeed matched. I don't care if this
          * is racy or not, because it can only happen on cardmgr access
diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c
index 9ced52ab7d14..da471bddc972 100644
--- a/drivers/pcmcia/yenta_socket.c
+++ b/drivers/pcmcia/yenta_socket.c
@@ -1197,8 +1197,12 @@ static int __devinit yenta_probe (struct pci_dev *dev, const struct pci_device_i
         ret = pcmcia_register_socket(&socket->socket);
         if (ret == 0) {
                 /* Add the yenta register attributes */
-                device_create_file(&dev->dev, &dev_attr_yenta_registers);
-                goto out;
+                ret = device_create_file(&dev->dev, &dev_attr_yenta_registers);
+                if (ret == 0)
+                        goto out;
+
+                /* error path... */
+                pcmcia_unregister_socket(&socket->socket);
         }
 
  unmap:
@@ -1248,12 +1252,18 @@ static int yenta_dev_resume (struct pci_dev *dev)
         struct yenta_socket *socket = pci_get_drvdata(dev);
 
         if (socket) {
+                int rc;
+
                 pci_set_power_state(dev, 0);
                 /* FIXME: pci_restore_state needs to have a better interface */
                 pci_restore_state(dev);
                 pci_write_config_dword(dev, 16*4, socket->saved_state[0]);
                 pci_write_config_dword(dev, 17*4, socket->saved_state[1]);
-                pci_enable_device(dev);
+
+                rc = pci_enable_device(dev);
+                if (rc)
+                        return rc;
+
                 pci_set_master(dev);
 
                 if (socket->type && socket->type->restore_state)