shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-03 09:41:54 +09:00
Code Issues Packages Projects Releases Wiki Activity

usb: gadget: pch_udc: Fix disconnect issue

Browse Source 
commit c50a3bff0e upstream.

ISSUE:
When the driver notifies a gadget of a disconnect event, a system
rarely freezes.

CAUSE:
When the driver calls dev->driver->disconnect(), it is not calling
spin_unlock().

Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomoya MORINAGA
2012-01-12 11:27:05 +09:00
committed by Greg Kroah-Hartman
parent a1fdbba66d
commit 21c7c5809c
1 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/usb/gadget/pch_udc.c
View File

@@ -2338,8 +2338,11 @@ static void pch_udc_svc_ur_interrupt(struct pch_udc_dev *dev)
/* Complete request queue */
empty_req_queue(ep);
}
if (dev->driver && dev->driver->disconnect)
if (dev->driver && dev->driver->disconnect) {
spin_unlock(&dev->lock);
dev->driver->disconnect(&dev->gadget);
spin_lock(&dev->lock);
}
}
/**