pm_runtime_put_sync() is called in the probe error path and in remove
when nothing holds a runtime PM reference anymore, so it underflows
the usage count.

Fixes: 0e6f357a5deb ("spi: omap2-mcspi: Fix PM regression with deferred probe for pm_runtime_reinit")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
---
 drivers/spi/spi-omap2-mcspi.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index a3355147f5de..82c8b91e504e 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -1595,7 +1595,6 @@ static int omap2_mcspi_probe(struct platform_device *pdev)
 
 err_disable_rpm:
 	pm_runtime_dont_use_autosuspend(&pdev->dev);
-	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 err_release_dma:
 	omap2_mcspi_release_dma(ctlr);
@@ -1613,7 +1612,6 @@ static void omap2_mcspi_remove(struct platform_device *pdev)
 	omap2_mcspi_release_dma(ctlr);
 
 	pm_runtime_dont_use_autosuspend(mcspi->dev);
-	pm_runtime_put_sync(mcspi->dev);
 	pm_runtime_disable(&pdev->dev);
 }
 

---
base-commit: 4b18edbd8e70f7e6860d56370f13244896d0f95c
change-id: 20260825-mcspi-776196d33dc8

Best regards,
--  
Felix Gu <ustc.gu@gmail.com>

On Wed, 26 Aug 2026 01:08:40 +0800, Felix Gu wrote:
> spi: omap2-mcspi: Remove unbalanced pm_runtime_put_sync() calls

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-7.4

Thanks!

[1/1] spi: omap2-mcspi: Remove unbalanced pm_runtime_put_sync() calls
      https://git.kernel.org/broonie/spi/c/5f01cb141169

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark