Zero out `devpriv->usb_tx_buf` and `devpriv->usb_rx_buf` on allocation. When sending data to the USB device, this ensures any unused part of the buffer will not contain random crap.
Signed-off-by: Ian Abbott <[email protected]> --- drivers/staging/comedi/drivers/vmk80xx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c index ebf2d48..0a74e6c 100644 --- a/drivers/staging/comedi/drivers/vmk80xx.c +++ b/drivers/staging/comedi/drivers/vmk80xx.c @@ -997,12 +997,12 @@ static int vmk80xx_alloc_usb_buffers(struct comedi_device *dev) size_t size; size = le16_to_cpu(devpriv->ep_rx->wMaxPacketSize); - devpriv->usb_rx_buf = kmalloc(size, GFP_KERNEL); + devpriv->usb_rx_buf = kzalloc(size, GFP_KERNEL); if (!devpriv->usb_rx_buf) return -ENOMEM; size = le16_to_cpu(devpriv->ep_tx->wMaxPacketSize); - devpriv->usb_tx_buf = kmalloc(size, GFP_KERNEL); + devpriv->usb_tx_buf = kzalloc(size, GFP_KERNEL); if (!devpriv->usb_tx_buf) { kfree(devpriv->usb_rx_buf); return -ENOMEM; -- 1.8.1.2 _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
