[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>

diff --git a/drivers/pcmcia/pcmcia_ioctl.c b/drivers/pcmcia/pcmcia_ioctl.c
index 9ad18e6..310ede5 100644 (file)
--- 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 9ced52a..da471bd 100644 (file)
--- 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)