diff options
| author | Ming Lei <ming.lei@canonical.com> | 2013-04-18 04:17:38 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-19 17:20:41 (GMT) |
| commit | ac9e59cad7b0b699b2aa9a104eb22ed67a560e02 (patch) | |
| tree | 9de461b53f426632ef4be810f6eade869bd2b1ba /drivers/usb | |
| parent | c33c888b585fd9ed3770e91588480a0b74e82ad0 (diff) | |
| download | linux-ac9e59cad7b0b699b2aa9a104eb22ed67a560e02.tar.xz | |
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 <ming.lei@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/class/usbtmc.c | 26 |
1 files changed, 4 insertions, 22 deletions
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index 70d69d0..4c5506a 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) |