]> git.ipfire.org Git - thirdparty/kernel/linux.git/commitdiff
spi: cadence-qspi: Fix runtime PM imbalance in probe
authorAli Tariq <alitariq45892@gmail.com>
Sun, 30 Nov 2025 09:12:51 +0000 (09:12 +0000)
committerMark Brown <broonie@kernel.org>
Tue, 2 Dec 2025 13:37:55 +0000 (13:37 +0000)
The probe function incorrectly calls pm_runtime_put_autosuspend()
twice in succession at the end of successful probe, dropping two
runtime PM references while only one was acquired earlier with
pm_runtime_get_sync(). This causes a usage count underflow:

    cadence-qspi 13010000.spi: Runtime PM usage count underflow!

Remove the first redundant pm_runtime_put_autosuspend() call to
balance the reference count.

Tested on StarFive VisionFive 2 v1.2A board.

Fixes: 30dbc1c8d50f ("spi: cadence-qspi: defer runtime support on socfpga if reset bit is enabled")
Signed-off-by: Ali Tariq <alitariq45892@gmail.com>
Link: https://patch.msgid.link/20251130091251.12120-1-alitariq45892@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
drivers/spi/spi-cadence-quadspi.c

index 81017402bc5661d08ff4e75017db954fda19ba2a..638edca3805ac46dac314733d35ef9a024b8f2e2 100644 (file)
@@ -2012,7 +2012,6 @@ static int cqspi_probe(struct platform_device *pdev)
        }
 
        if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) {
-               pm_runtime_put_autosuspend(dev);
                pm_runtime_mark_last_busy(dev);
                pm_runtime_put_autosuspend(dev);
        }