tree f27368d0796494cc8d8469e2f387cb2d43f4b209
parent 9f5449611c9d6d7bdcae8020a197d8b4d9b6443c
author Krzysztof Halasa <khc@pm.waw.pl> 1292155607 +0000
committer David S. Miller <davem@davemloft.net> 1292194980 -0800

WAN: Fix a TX IRQ causing BUG() in PC300 and PCI200SYN drivers.

We must not wake the TX queue without free TX descriptors.
sca_xmit() expects at least one free descriptor and BUGs otherwise.

Problem reported and fix tested by Bernie Innocenti and Ward Vandewege.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>