From ac9e59cad7b0b699b2aa9a104eb22ed67a560e02 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Thu, 18 Apr 2013 12:17:38 +0800 Subject: [PATCH] USB: usbtmc: remove unnecessary memory allocation Inside usbtmc_ioctl_clear_out_halt()/usbtmc_ioctl_clear_in_halt(), usb_clear_halt() needn't any buffer to pass in, so remove the unnecessary memory allocation. Signed-off-by: Ming Lei Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/usbtmc.c | 26 ++++---------------------- 1 file changed, 4 insertions(+), 22 deletions(-) diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index 70d69d06054f..4c5506ae5e45 100644 --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -718,50 +718,32 @@ exit: static int usbtmc_ioctl_clear_out_halt(struct usbtmc_device_data *data) { - u8 *buffer; int rv; - buffer = kmalloc(2, GFP_KERNEL); - if (!buffer) - return -ENOMEM; - rv = usb_clear_halt(data->usb_dev, usb_sndbulkpipe(data->usb_dev, data->bulk_out)); if (rv < 0) { dev_err(&data->usb_dev->dev, "usb_control_msg returned %d\n", rv); - goto exit; + return rv; } - rv = 0; - -exit: - kfree(buffer); - return rv; + return 0; } static int usbtmc_ioctl_clear_in_halt(struct usbtmc_device_data *data) { - u8 *buffer; int rv; - buffer = kmalloc(2, GFP_KERNEL); - if (!buffer) - return -ENOMEM; - rv = usb_clear_halt(data->usb_dev, usb_rcvbulkpipe(data->usb_dev, data->bulk_in)); if (rv < 0) { dev_err(&data->usb_dev->dev, "usb_control_msg returned %d\n", rv); - goto exit; + return rv; } - rv = 0; - -exit: - kfree(buffer); - return rv; + return 0; } static int get_capabilities(struct usbtmc_device_data *data) -- 2.39.2