ChangeSet 1.1843.4.31, 2004/08/26 15:56:59-07:00, [EMAIL PROTECTED]
[PATCH] USB: cdc acm patch
Fix tty layer sleep/locking problem (again) ... when this is
called through the network stack (PPP) sleeping isn't allowed.
There's some bugtraq ID for this.
From: Oliver Neukum <[EMAIL PROTECTED]>
Signed-off-by: David Brownell <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
drivers/usb/class/cdc-acm.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -Nru a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
--- a/drivers/usb/class/cdc-acm.c 2004-08-26 16:40:50 -07:00
+++ b/drivers/usb/class/cdc-acm.c 2004-08-26 16:40:50 -07:00
@@ -367,7 +367,7 @@
acm->writeurb->dev = acm->dev;
acm->ready_for_write = 0;
- stat = usb_submit_urb(acm->writeurb, GFP_NOIO);
+ stat = usb_submit_urb(acm->writeurb, from_user ? GFP_KERNEL : GFP_ATOMIC);
if (stat < 0) {
dbg("usb_submit_urb(write bulk) failed");
acm->ready_for_write = 1;
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