[PATCH] sh_eth: Fix power down vs. is_opened flag ordering

sh_eth_close() does a synchronous power down of the device before
marking it closed.  Revert the order, to make sure the device is never
marked opened while suspended.

While at it, use pm_runtime_put() instead of pm_runtime_put_sync(), as
there is no reason to do a synchronous power down.

Fixes: 7fa2955ff70ce453 ("sh_eth: Fix sleeping function called from invalid context")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/net/ethernet/renesas/sh_eth.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 9b52d350e21a9f2b..590b088bc4c7f3e2 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c

@@ -2606,10 +2606,10 @@ static int sh_eth_close(struct net_device *ndev)
 	/* Free all the skbuffs in the Rx queue and the DMA buffer. */
 	sh_eth_ring_free(ndev);
 
-	pm_runtime_put_sync(&mdp->pdev->dev);
-
 	mdp->is_opened = 0;
 
+	pm_runtime_put(&mdp->pdev->dev);
+
 	return 0;
 }
 

-- 
2.25.1

On 1/18/21 6:08 PM, Geert Uytterhoeven wrote:

sh_eth_close() does a synchronous power down of the device before
marking it closed.  Revert the order, to make sure the device is never
marked opened while suspended.

While at it, use pm_runtime_put() instead of pm_runtime_put_sync(), as
there is no reason to do a synchronous power down.

Fixes: 7fa2955ff70ce453 ("sh_eth: Fix sleeping function called from invalid context")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Reviewed-by: Sergei Shtylyov <redacted>

[...]

MBR, Sergei

Hi Geert,

Thanks for your work.

On 2021-01-18 16:08:12 +0100, Geert Uytterhoeven wrote:

sh_eth_close() does a synchronous power down of the device before
marking it closed.  Revert the order, to make sure the device is never
marked opened while suspended.

While at it, use pm_runtime_put() instead of pm_runtime_put_sync(), as
there is no reason to do a synchronous power down.

Fixes: 7fa2955ff70ce453 ("sh_eth: Fix sleeping function called from invalid context")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

-- 
Regards,
Niklas Söderlund

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Mon, 18 Jan 2021 16:08:12 +0100 you wrote:

sh_eth_close() does a synchronous power down of the device before
marking it closed.  Revert the order, to make sure the device is never
marked opened while suspended.

While at it, use pm_runtime_put() instead of pm_runtime_put_sync(), as
there is no reason to do a synchronous power down.

[...]

Here is the summary with links:
  - sh_eth: Fix power down vs. is_opened flag ordering
    https://git.kernel.org/netdev/net/c/f6a2e94b3f9d

You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html