Commit b3c3e7d7 authored Feb 27, 2006 by Francois Romieu

via-velocity: fix memory corruption when changing the mtu



velocity_rx_refill() only replenishes the descriptor entries which
belong to the CPU. It works great in the Rx path but the driver must
ensure that all the descriptors are freed before velocity_rx_refill()
is used in velocity_change_mtu(). The patch resets the Rx descriptors
in velocity_free_rd_ring().

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>

parent de5f503c

drivers/net/via-velocity.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1106,6 +1106,9 @@ static void velocity_free_rd_ring(struct velocity_info *vptr)

		for (i = 0; i < vptr->options.numrx; i++) {
		struct velocity_rd_info *rd_info = &(vptr->rd_info[i]);
		struct rx_desc *rd = vptr->rd_ring + i;

		memset(rd, 0, sizeof(*rd));

		if (!rd_info->skb)
		continue;