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(parent: 7ae4fc4) | patch
usb: dwc3: debugfs: hold the lock in during mode change
authorSebastian Andrzej Siewior <bigeasy@linutronix.de>
Thu, 20 Oct 2011 16:43:07 +0000 (18:43 +0200)
committerFelipe Balbi <balbi@ti.com>
Mon, 12 Dec 2011 09:48:19 +0000 (11:48 +0200)
commitc5537ea531d83b7d02ce2d52a5e2b90f526449d0
treea003b14a5994ff8df10c4d121b5a9d3b13dd0dbdtree | snapshot (tar.gz zip)
parent7ae4fc4dc835033067096639bd26416b3df744c7commit | diff
usb: dwc3: debugfs: hold the lock in during mode change

The read and write operation is atomic and we need no locking around
this operations. What we need however is a lock that is held which
ensures that the content of the DWC3_GCTL has not been changed. With
this, the conten may have been change changed after the first but before
our write back.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
drivers/usb/dwc3/debugfs.c diff | blob | blame | history