3c59x: Fix shared IRQ handling

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As its first order of business, boomerang_interrupt() checks whether
the device really has any pending interrupts. If it does not,
it does nothing and returns, but it still returns IRQ_HANDLED.

This is wrong: interrupt was not handled, IRQ handlers of other
devices sharing this IRQ line need to be called.

vortex_interrupt() has it right: it returns IRQ_NONE in this case
via IRQ_RETVAL(0).

Do the same in boomerang_interrupt().

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
CC: David S. Miller <davem@davemloft.net>
CC: linux-kernel@vger.kernel.org
CC: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Denys Vlasenko 2015-07-07 20:48:55 +02:00 • committed by David S. Miller

parent 0769636cb5

commit 4eed4d8ff9

1 changed files with 3 additions and 1 deletions

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drivers/net/ethernet/3com/3c59x.c

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