commit: 616b6937e348ef2b4c6ea5fef2cd3c441145efb0 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <[email protected]> Date: Wed, 9 May 2012 13:53:21 +0200 Subject: USB: cdc-wdm: poll must return POLLHUP if device is gone MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit
Else the poll will be restarted indefinitely in a tight loop, preventing final device cleanup. Cc: Oliver Neukum <[email protected]> Cc: stable <[email protected]> Signed-off-by: Bjørn Mork <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/usb/class/cdc-wdm.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 5d15165..7652275 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -548,7 +548,7 @@ static unsigned int wdm_poll(struct file *file, struct poll_table_struct *wait) spin_lock_irqsave(&desc->iuspin, flags); if (test_bit(WDM_DISCONNECTING, &desc->flags)) { - mask = POLLERR; + mask = POLLHUP | POLLERR; spin_unlock_irqrestore(&desc->iuspin, flags); goto desc_out; } -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
