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mtd: rawnand: Fix return value check of wait_for_completion_timeout
[ Upstream commit 084c16a ] wait_for_completion_timeout() returns unsigned long not int. It returns 0 if timed out, and positive if completed. The check for <= 0 is ambiguous and should be == 0 here indicating timeout which is the only error case. Fixes: 83738d8 ("mtd: sh_flctl: Add DMA capabilty") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20220412083435.29254-1-linmq006@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org>
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