Commit 07038c15 authored Oct 14, 2014 by Sujeet Kumar

USB: u_bam: Acquire the correct gbam port ul or dl spinlock



Allocating and freeing tx and rx requests needs to
protect the idle lists using a spinlock. The spinlock
is separate for ul and dl cases. Before allocating
the requests, acquire the respective spinlock.

CRs-Fixed: 734346
Change-Id: Iecb5ed348140b37be732fbfba137eef31d088639
Signed-off-by: Sujeet Kumar <ksujeet@codeaurora.org>

parent 384d6b23

drivers/usb/gadget/u_bam.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -1017,9 +1017,9 @@ static int _gbam_start_io(struct gbam_port *port, bool in)
		void (ep_complete)(struct usb_ep , struct usb_request *);

		if (in)
		spinlock = &port->port_lock_ul;
		else
		spinlock = &port->port_lock_dl;
		else
		spinlock = &port->port_lock_ul;

		spin_lock_irqsave(spinlock, flags);
		if (!port->port_usb) {