linux-kernel - [PATCH] misc: powermate: update the reference count of the usb interface structure

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Date:   Sat, 24 Jul 2021 22:20:16 +0100
From:   Salah Triki <salah.triki@...il.com>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        gregkh@...uxfoundation.org
Cc:     linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] misc: powermate: update the reference count of the usb
 interface structure

Use usb_get_intf() and usb_put_intf() in order to update the reference
count of the usb interface structure.

Signed-off-by: Salah Triki <salah.triki@...il.com>
---
 drivers/input/misc/powermate.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/input/misc/powermate.c b/drivers/input/misc/powermate.c
index c4e0e1886061..69dc3347478a 100644
--- a/drivers/input/misc/powermate.c
+++ b/drivers/input/misc/powermate.c
@@ -337,7 +337,7 @@ static int powermate_probe(struct usb_interface *intf, const struct usb_device_i
 		goto fail3;
 
 	pm->udev = udev;
-	pm->intf = intf;
+	pm->intf = usb_get_intf(intf);
 	pm->input = input_dev;
 
 	usb_make_path(udev, pm->phys, sizeof(pm->phys));
@@ -428,6 +428,7 @@ static void powermate_disconnect(struct usb_interface *intf)
 		usb_free_urb(pm->irq);
 		usb_free_urb(pm->config);
 		powermate_free_buffers(interface_to_usbdev(intf), pm);
+		usb_put_intf(pm->intf);
 
 		kfree(pm);
 	}
-- 
2.25.1