[PATCH] usb: storage: realtek_cr: get lock before calling usb_enable_autosuspend()

[Salah Triki]

Based on the documentation of usb_enable_autosuspend(), the
caller must hold udev's device lock.

Signed-off-by: Salah Triki <salah.triki@xxxxxxxxx>
---
 drivers/usb/storage/realtek_cr.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c
index 3789698d9d3c..6948d6fdad39 100644
--- a/drivers/usb/storage/realtek_cr.c
+++ b/drivers/usb/storage/realtek_cr.c
@@ -918,9 +918,13 @@ static int realtek_cr_autosuspend_setup(struct us_data *us)
 	timer_setup(&chip->rts51x_suspend_timer, rts51x_suspend_timer_fn, 0);
 	fw5895_init(us);
 
+	usb_lock_device(us->pusb_dev);
+
 	/* enable autosuspend function of the usb device */
 	usb_enable_autosuspend(us->pusb_dev);
 
+	usb_unlock_device(us->pusb_dev);
+
 	return 0;
 }
 #endif
-- 
2.25.1