[PATCH 4.19 117/346] spi: img-spfi: fix reference leak in img_spfi_resume

[Greg Kroah-Hartman]

From: Zhang Qilong <zhangqilo...@huawei.com>

[ Upstream commit ee5558a9084584015c8754ffd029ce14a5827fa8 ]

pm_runtime_get_sync will increment pm usage counter even it
failed. Forgetting to pm_runtime_put_noidle will result in
reference leak in img_spfi_resume, so we should fix it.

Fixes: deba25800a12b ("spi: Add driver for IMG SPFI controller")
Signed-off-by: Zhang Qilong <zhangqilo...@huawei.com>
Link: https://lore.kernel.org/r/20201102145651.3875-1-zhangqilo...@huawei.com
Signed-off-by: Mark Brown <broo...@kernel.org>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/spi/spi-img-spfi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-img-spfi.c b/drivers/spi/spi-img-spfi.c
index e4b31d6e6e33e..25a545c985d4a 100644
--- a/drivers/spi/spi-img-spfi.c
+++ b/drivers/spi/spi-img-spfi.c
@@ -774,8 +774,10 @@ static int img_spfi_resume(struct device *dev)
        int ret;
 
        ret = pm_runtime_get_sync(dev);
-       if (ret)
+       if (ret) {
+               pm_runtime_put_noidle(dev);
                return ret;
+       }
        spfi_reset(spfi);
        pm_runtime_put(dev);
 
-- 
2.27.0