spi: img-spfi: Fix pm_runtime_get_sync() error checking

[ Upstream commit cc470d55343056d6b2a5c32e10e0aad06f324078 ]

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: deba25800a12b ("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>

diff --git a/drivers/spi/spi-img-spfi.c b/drivers/spi/spi-img-spfi.c
index 2a340234c85c1b2e5a56d02a13937d5ac71a3385..82ab1bc2196a959e57703b44284d03c7b5f14c7c 100644 (file)
--- a/drivers/spi/spi-img-spfi.c
+++ b/drivers/spi/spi-img-spfi.c
@@ -771,7 +771,7 @@ static int img_spfi_resume(struct device *dev)
        int ret;
 
        ret = pm_runtime_get_sync(dev);
-       if (ret) {
+       if (ret < 0) {
                pm_runtime_put_noidle(dev);
                return ret;
        }