From: Johan Hovold Date: Wed, 29 Oct 2014 08:07:31 +0000 (+0100) Subject: USB: opticon: fix non-atomic allocation in write path X-Git-Tag: v3.2.65~59 X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=7ce77510c9c7dc76bd03687daa7d909aee948182 USB: opticon: fix non-atomic allocation in write path commit e681286de221af78fc85db9222b6a203148c005a upstream. 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") Signed-off-by: Johan Hovold Signed-off-by: Ben Hutchings --- diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index d6c5ed62c1cb..e629533ad2e2 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -293,7 +293,7 @@ static int opticon_write(struct tty_struct *tty, struct usb_serial_port *port, /* The conncected 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) { dev_err(&port->dev, "out of memory\n"); count = -ENOMEM;