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When calling request_irq with IRQF_SHARED, the dev cookie must be set (i.e. non-NULL), otherwise the code rejects it immediately with -EINVAL. So restore the logic here where we'd pass a pointer to the name as a dummy unique val. Otherwise, booting up on my LANDISK system would fail with: DMAC Address Error0 request_irq fail This was introduced in commit 7f47c7189b3e8f19a589f77a3ad169d7b691b582. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>