2.6.32-longterm review patch. If anyone has any objections, please let me know.
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path
From: Johan Hovold <johan@xxxxxxxxxx>
Write may be called from interrupt context so make sure to use
GFP_ATOMIC for all allocations in write.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
(cherry picked from commit 191252837626fca0de694c18bb2aa64c118eda89)
Signed-off-by: Willy Tarreau <w@xxxxxx>
---
drivers/usb/serial/kobil_sct.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index 929ceb1..935f6e31 100644
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -464,7 +464,7 @@ static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
);
priv->cur_pos = priv->cur_pos + length;
- result = usb_submit_urb(port->write_urb, GFP_NOIO);
+ result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
dbg("%s - port %d Send write URB returns: %i",
__func__, port->number, result);
todo = priv->filled - priv->cur_pos;
@@ -488,7 +488,7 @@ static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
port->interrupt_in_urb->dev = port->serial->dev;
result = usb_submit_urb(port->interrupt_in_urb,
- GFP_NOIO);
+ GFP_ATOMIC);
dbg("%s - port %d Send read URB returns: %i",
__func__, port->number, result);
}
--
1.7.12.2.21.g234cd45.dirty
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