From: Oliver Neukum <oliver@neukum.org>
Date: Tue, 2 Mar 2010 23:37:56 +0000 (+0100)
Subject: USB: cdc-acm: Fix stupid NULL pointer in resume()
X-Git-Tag: firefly_0821_release~10186^2~1758
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f48673e5235732da41d9cd57365a5a3d7b71a32e;p=firefly-linux-kernel-4.4.55.git

USB: cdc-acm: Fix stupid NULL pointer in resume()

commit f0730924e9e32bb8935c60040a26d94179355088 upstream.

Stupid logic bug passing a just nulled pointer

Signed-off-by: Oliver Neukum <neukum@b1-systems.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 747e6d62530a..e6119edbf1e1 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1441,7 +1441,7 @@ static int acm_resume(struct usb_interface *intf)
 			wb = acm->delayed_wb;
 			acm->delayed_wb = NULL;
 			spin_unlock_irq(&acm->write_lock);
-			acm_start_wb(acm, acm->delayed_wb);
+			acm_start_wb(acm, wb);
 		} else {
 			spin_unlock_irq(&acm->write_lock);
 		}