Krzysztof Halasa eaff9453d3 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>

2010-12-12 15:03:00 -08:00

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