3.13.11-ckt12 -stable review patch. If anyone has any objections, please let
me know.
------------------
From: Johan Hovold <jo...@kernel.org>
commit 191252837626fca0de694c18bb2aa64c118eda89 upstream.
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")
Signed-off-by: Johan Hovold <jo...@kernel.org>
Signed-off-by: Kamal Mostafa <ka...@canonical.com>
---
drivers/usb/serial/kobil_sct.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index 78b48c3..efa75b4 100644
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -336,7 +336,8 @@ static int kobil_write(struct tty_struct *tty, struct
usb_serial_port *port,
port->interrupt_out_urb->transfer_buffer_length =
length;
priv->cur_pos = priv->cur_pos + length;
- result = usb_submit_urb(port->interrupt_out_urb,
GFP_NOIO);
+ result = usb_submit_urb(port->interrupt_out_urb,
+ GFP_ATOMIC);
dev_dbg(&port->dev, "%s - Send write URB returns:
%i\n", __func__, result);
todo = priv->filled - priv->cur_pos;
@@ -351,7 +352,7 @@ static int kobil_write(struct tty_struct *tty, struct
usb_serial_port *port,
if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
result = usb_submit_urb(port->interrupt_in_urb,
- GFP_NOIO);
+ GFP_ATOMIC);
dev_dbg(&port->dev, "%s - Send read URB returns: %i\n",
__func__, result);
}
}
--
1.9.1
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