summaryrefslogtreecommitdiff
path: root/drivers/usb/serial/keyspan_pda.c
diff options
context:
space:
mode:
authorOliver Neukum <oliver@neukum.org>2009-10-07 12:50:23 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2009-10-10 00:52:09 +0400
commit638325154572ba2113a18669fe3b299caa2dabd9 (patch)
treec562a8460be432facbbba11288edaceba5ecbf1c /drivers/usb/serial/keyspan_pda.c
parentb2a5cf1bdc011f5474c72543f9d8116c0f07f452 (diff)
downloadlinux-638325154572ba2113a18669fe3b299caa2dabd9.tar.xz
USB: serial: fix assumption that throttle/unthrottle cannot sleep
many serial subdrivers are clearly written as if throttle/unthrottle cannot sleep. This leads to unneeded atomic submissions. This patch converts affected drivers in a way to makes very clear that throttle/unthrottle can sleep. Thus future misdesigns can be avoided and efficiency and reliability improved. This removes any such assumption using GFP_KERNEL and spin_lock_irq() Signed-off-by: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/keyspan_pda.c')
-rw-r--r--drivers/usb/serial/keyspan_pda.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index 257c16cc6b2a..1296a097f5c3 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -290,7 +290,7 @@ static void keyspan_pda_rx_unthrottle(struct tty_struct *tty)
/* just restart the receive interrupt URB */
dbg("keyspan_pda_rx_unthrottle port %d", port->number);
port->interrupt_in_urb->dev = port->serial->dev;
- if (usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC))
+ if (usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL))
dbg(" usb_submit_urb(read urb) failed");
return;
}