[PATCH v3 1/4] edac: Add an function to retrieve the EDAC debugfs node

[Loc Ho]

This patch adds an function to retrieve the EDAC debugfs node. This allows
EDAC driver to create debugfs node under the EDAC debugfs node.

Signed-off-by: Loc Ho <lho at apm.com>
---
 drivers/edac/edac_core.h     |    1 +
 drivers/edac/edac_mc_sysfs.c |   10 ++++++++++
 2 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/drivers/edac/edac_core.h b/drivers/edac/edac_core.h
index ad42587..6771e64 100644
--- a/drivers/edac/edac_core.h
+++ b/drivers/edac/edac_core.h
@@ -511,5 +511,6 @@ extern void edac_pci_remove_sysfs(struct edac_pci_ctl_info *pci);
  * edac misc APIs
  */
 extern char *edac_op_state_to_string(int op_state);
+extern struct dentry *edac_get_debugfs(void);
 
 #endif				/* _EDAC_CORE_H_ */
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index 33df7d9..b76afe0 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -959,6 +959,16 @@ nomem:
 	debugfs_remove(mci->debugfs);
 	return -ENOMEM;
 }
+
+struct dentry *edac_get_debugfs(void)
+{
+	return edac_debugfs;
+}
+#else
+struct dentry *edac_get_debugfs(void)
+{
+	return NULL;
+}
 #endif
 
 /*
-- 
1.7.1