vnt_free_tx_bufs() relies on priv->tx_context elements to be NULL if
they are not initialized (as vnt_free_rx_bufs() does). Add a check to
these elements in order to avoid NULL pointer dereference.
Signed-off-by: Quentin Deslandes <quentin.deslan...@itdev.co.uk>
---
drivers/staging/vt6656/main_usb.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/staging/vt6656/main_usb.c
b/drivers/staging/vt6656/main_usb.c
index ccafcc2c87ac..bfe952fe27bf 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -363,6 +363,9 @@ static void vnt_free_tx_bufs(struct vnt_private *priv)
for (ii = 0; ii < priv->num_tx_context; ii++) {
tx_context = priv->tx_context[ii];
+ if (!tx_context)
+ continue;
+
/* deallocate URBs */
if (tx_context->urb) {
usb_kill_urb(tx_context->urb);
--
2.17.1
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