linux-kernel - [111/139] USB: cdc-acm: Fix stupid NULL pointer in resume()

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Message-Id: <20100422195416.570781253@kvm.kroah.org>
Date:	Thu, 22 Apr 2010 12:54:48 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Oliver Neukum <neukum@...systems.de>
Subject: [111/139] USB: cdc-acm: Fix stupid NULL pointer in resume()

2.6.33-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Oliver Neukum <oliver@...kum.org>

commit f0730924e9e32bb8935c60040a26d94179355088 upstream.

Stupid logic bug passing a just nulled pointer

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

---
 drivers/usb/class/cdc-acm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1441,7 +1441,7 @@ static int acm_resume(struct usb_interfa
 			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);
 		}


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