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authorIngo Molnar <mingo@kernel.org>2013-08-15 10:00:09 +0200
committerIngo Molnar <mingo@kernel.org>2013-08-15 10:00:09 +0200
commitc9572f010d369d9905309f63e31180f291b66a8a (patch)
treefbca2a0576c4223790e23a3c1d5f50e2bdf64e10 /arch/powerpc/kernel/eeh_sysfs.c
parent58cea307432e3376293e6b2be88d1f6e6e99274a (diff)
parentd4e4ab86bcba5a72779c43dc1459f71fea3d89c8 (diff)
Merge tag 'v3.11-rc5' into perf/core
Merge Linux 3.11-rc5, to sync up with the latest upstream fixes since -rc1. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/powerpc/kernel/eeh_sysfs.c')
-rw-r--r--arch/powerpc/kernel/eeh_sysfs.c21
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;
}