Merge 3.11-rc3 into char-misc-next.

This resolves a merge issue with:
	drivers/misc/mei/init.c

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 21 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/eeh_sysfs.c b/arch/powerpc/kernel/eeh_sysfs.c
index e7ae3484918c..5d753d4f2c75 100644
--- a/arch/powerpc/kernel/eeh_sysfs.c
+++ b/arch/powerpc/kernel/eeh_sysfs.c
@@ -56,19 +56,40 @@ EEH_SHOW_ATTR(eeh_pe_config_addr,  pe_config_addr,  "0x%x");
 
 void eeh_sysfs_add_device(struct pci_dev *pdev)
 {
+        struct eeh_dev *edev = pci_dev_to_eeh_dev(pdev);
         int rc=0;
 
+        if (edev && (edev->mode & EEH_DEV_SYSFS))
+                return;
+
         rc += device_create_file(&pdev->dev, &dev_attr_eeh_mode);
         rc += device_create_file(&pdev->dev, &dev_attr_eeh_config_addr);
         rc += device_create_file(&pdev->dev, &dev_attr_eeh_pe_config_addr);
 
         if (rc)
                 printk(KERN_WARNING "EEH: Unable to create sysfs entries\n");
+        else if (edev)
+                edev->mode |= EEH_DEV_SYSFS;
 }
 
 void eeh_sysfs_remove_device(struct pci_dev *pdev)
 {
+        struct eeh_dev *edev = pci_dev_to_eeh_dev(pdev);
+
+        /*
+         * The parent directory might have been removed. We needn't
+         * continue for that case.
+         */
+        if (!pdev->dev.kobj.sd) {
+                if (edev)
+                        edev->mode &= ~EEH_DEV_SYSFS;
+                return;
+        }
+
         device_remove_file(&pdev->dev, &dev_attr_eeh_mode);
         device_remove_file(&pdev->dev, &dev_attr_eeh_config_addr);
         device_remove_file(&pdev->dev, &dev_attr_eeh_pe_config_addr);
+
+        if (edev)
+                edev->mode &= ~EEH_DEV_SYSFS;
 }