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 <abbotti@xxxxxxxxx>
---
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
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