[PATCH] usb: dwc3: free dwc->regset on dwc3_debugfs_exit

[changbin . du]

From: "Du, Changbin" <changbin.du@xxxxxxxxx>

dwc->regset is allocated on dwc3_debugfs_init, and should
be released on dwc3_debugfs_exit.

Signed-off-by: Du, Changbin <changbin.du@xxxxxxxxx>
---
This patch is seperated from patch set:
 [PATCH v2 0/3] Improvement, fix and new entry for dwc3 debugfs
Because it is not related to other 2 patches.

---
 drivers/usb/dwc3/debugfs.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c
index 9ac37fe..9eeb444 100644
--- a/drivers/usb/dwc3/debugfs.c
+++ b/drivers/usb/dwc3/debugfs.c
@@ -687,4 +687,7 @@ void dwc3_debugfs_exit(struct dwc3 *dwc)
 {
 	debugfs_remove_recursive(dwc->root);
 	dwc->root = NULL;
+
+	kfree(dwc->regset);
+	dwc->regset = NULL;
 }
-- 
2.5.0