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authorJohan Hovold <johan@kernel.org>2014-10-29 09:07:30 +0100
committerJohan Hovold <johan@kernel.org>2014-11-03 09:07:28 +0100
commit191252837626fca0de694c18bb2aa64c118eda89 (patch)
tree37de857f1a7bb2685006bdc4730076b91beb6473 /drivers/usb
parent0df1f2487d2f0d04703f142813d53615d62a1da4 (diff)
downloadop-kernel-dev-191252837626fca0de694c18bb2aa64c118eda89.zip
op-kernel-dev-191252837626fca0de694c18bb2aa64c118eda89.tar.gz
USB: kobil_sct: fix non-atomic allocation in write path
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@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/serial/kobil_sct.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index 3d2bd65..02c420a 100644
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -335,7 +335,8 @@ 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;
@@ -350,7 +351,7 @@ 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);
}
}
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