diff mbox series

USB: fotg210-hcd: remove dentry storage for debugfs file

Message ID 20210525172534.848775-1-gregkh@linuxfoundation.org (mailing list archive)
State Accepted
Commit 0f60203d2142e759ac3913bb63017645ddf49f94
Headers show
Series USB: fotg210-hcd: remove dentry storage for debugfs file | expand

Commit Message

Greg Kroah-Hartman May 25, 2021, 5:25 p.m. UTC 
There is no need to store the dentry pointer for a debugfs file that we
only use to remove it when the device goes away.  debugfs can do the
lookup for us instead, saving us some trouble, and making things smaller
overall.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/fotg210-hcd.c | 5 +++--
 drivers/usb/host/fotg210.h     | 3 ---
 2 files changed, 3 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
index 9c2eda0918e1..05fb8d97cf02 100644
--- a/drivers/usb/host/fotg210-hcd.c
+++ b/drivers/usb/host/fotg210-hcd.c
@@ -850,7 +850,6 @@  static inline void create_debug_files(struct fotg210_hcd *fotg210)
 	struct dentry *root;
 
 	root = debugfs_create_dir(bus->bus_name, fotg210_debug_root);
-	fotg210->debug_dir = root;
 
 	debugfs_create_file("async", S_IRUGO, root, bus, &debug_async_fops);
 	debugfs_create_file("periodic", S_IRUGO, root, bus,
@@ -861,7 +860,9 @@  static inline void create_debug_files(struct fotg210_hcd *fotg210)
 
 static inline void remove_debug_files(struct fotg210_hcd *fotg210)
 {
-	debugfs_remove_recursive(fotg210->debug_dir);
+	struct usb_bus *bus = &fotg210_to_hcd(fotg210)->self;
+
+	debugfs_remove(debugfs_lookup(bus->bus_name, fotg210_debug_root));
 }
 
 /* handshake - spin reading hc until handshake completes or fails
diff --git a/drivers/usb/host/fotg210.h b/drivers/usb/host/fotg210.h
index 6cee40ec65b4..0a91061a0551 100644
--- a/drivers/usb/host/fotg210.h
+++ b/drivers/usb/host/fotg210.h
@@ -184,9 +184,6 @@  struct fotg210_hcd {			/* one per controller */
 
 	/* silicon clock */
 	struct clk		*pclk;
-
-	/* debug files */
-	struct dentry		*debug_dir;
 };
 
 /* convert between an HCD pointer and the corresponding FOTG210_HCD */