| commit | 08cbc706acd2dd601b0663e28fa97ffb0564e105 | |
| author | Nicolas Ferre <nicolas.ferre@atmel.com> | |
| Thu, 13 Dec 2007 23:52:58 +0000 (13 15:52 -0800) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Mon, 17 Dec 2007 18:47:15 +0000 (17 10:47 -0800) | ||
| tree | fc9cc0a4aab57dee2b30a8b145dfbb5ee3688388 | treesnapshot (tar.gz zip) |
| parent | 442258e2ff69276ff767f3703b30ce6a31fdd181 | commitdiff |
USB: at91_udc: correct hanging while disconnecting usb cable
Correct hanging while disconnecting the USB device cable. Prevent a race
between vbus and UDP interrupts. This bug was tracked on at91sam9260ek
boards.
A usb resume interrupt was firing after the vbus interrupt : the IP was
then already stoped and not able to deal with it (no more clock). A simple
interrupt disabling is ok as the "end of bus reset" irq is non maskable and
ok to resume the USB device IP.
Signed-off-by: Nicolas Ferre <nicolas.ferre@rfo.atmel.com>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Correct hanging while disconnecting the USB device cable. Prevent a race
between vbus and UDP interrupts. This bug was tracked on at91sam9260ek
boards.
A usb resume interrupt was firing after the vbus interrupt : the IP was
then already stoped and not able to deal with it (no more clock). A simple
interrupt disabling is ok as the "end of bus reset" irq is non maskable and
ok to resume the USB device IP.
Signed-off-by: Nicolas Ferre <nicolas.ferre@rfo.atmel.com>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| drivers/usb/gadget/at91_udc.c | diffblobblamehistory |