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spi: img-spfi: Fix pm_runtime_get_sync() error checking
[ Upstream commit cc470d5 ] If the device is already in a runtime PM enabled state pm_runtime_get_sync() will return 1, so a test for negative value should be used to check for errors. Fixes: deba258 ("spi: Add driver for IMG SPFI controller") Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com> Link: https://lore.kernel.org/r/20220422062641.10486-1-zhengyongjun3@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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