[PATCH net-next] net: microchip: Remove set but not used variable

[Zheng Yongjun]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/microchip/lan743x_main.c: In function lan743x_pm_suspend:
drivers/net/ethernet/microchip/lan743x_main.c:3041:6: warning: variable ‘ret’ 
set but not used [-Wunused-but-set-variable]

`ret` is set but not used, so check it's value.

Signed-off-by: Zheng Yongjun <zhengyongj...@huawei.com>
---
 drivers/net/ethernet/microchip/lan743x_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/microchip/lan743x_main.c 
b/drivers/net/ethernet/microchip/lan743x_main.c
index de93cc6ebc1a..56a1b5928f9a 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -3053,7 +3053,7 @@ static int lan743x_pm_suspend(struct device *dev)
        /* Host sets PME_En, put D3hot */
        ret = pci_prepare_to_sleep(pdev);
 
-       return 0;
+       return ret;
 }
 
 static int lan743x_pm_resume(struct device *dev)
-- 
2.17.1