From e681286de221af78fc85db9222b6a203148c005a Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Wed, 29 Oct 2014 09:07:31 +0100
Subject: [PATCH] USB: opticon: 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: 0d930e51cfe6 ("USB: opticon: Add Opticon OPN2001 write support")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
---
drivers/usb/serial/opticon.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c
index 4856fb7e637e70..4b7bfb394a32ab 100644
--- a/drivers/usb/serial/opticon.c
+++ b/drivers/usb/serial/opticon.c
@@ -215,7 +215,7 @@ static int opticon_write(struct tty_struct *tty, struct usb_serial_port *port,
/* The connected devices do not have a bulk write endpoint,
* to transmit data to de barcode device the control endpoint is used */
- dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_NOIO);
+ dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
if (!dr) {
count = -ENOMEM;
goto error_no_dr;
--
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