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spi: spi-cadence-quadspi: Enable pm runtime earlier to avoid imbalance 

The "probe_setup_failed" label calls pm_runtime_disable(), but
pm_runtime_enable() was placed after a possible jump to this label.
When cqspi_setup_flash() fails, control jumps to the label without
pm_runtime_enable() being called, leading to unbalanced PM runtime
reference counting.

Move pm_runtime_enable() and associated calls above the first
possible branch to "probe_setup_failed" to ensure balanced
enable/disable calls across all error paths.

Fixes: 30dbc1c8d5 ("spi: cadence-qspi: defer runtime support on socfpga if reset bit is enabled")
Signed-off-by: Anurag Dutta <a-dutta@ti.com>
Link: https://patch.msgid.link/20251105161146.2019090-2-a-dutta@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Anurag Dutta 2025-11-05 21:41:45 +05:30 committed by Mark Brown
parent 66e9feb03e
commit f1eb4e792b
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 7 additions and 7 deletions
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14
drivers/spi/spi-cadence-quadspi.c
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@ -1981,6 +1981,13 @@ static int cqspi_probe(struct platform_device *pdev)
cqspi->current_cs = -1;
cqspi->sclk = 0;
if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) {
pm_runtime_enable(dev);
pm_runtime_set_autosuspend_delay(dev, CQSPI_AUTOSUSPEND_TIMEOUT);
pm_runtime_use_autosuspend(dev);
pm_runtime_get_noresume(dev);
}
ret = cqspi_setup_flash(cqspi);
if (ret) {
dev_err(dev, "failed to setup flash parameters %d\n", ret);
@ -1998,13 +2005,6 @@ static int cqspi_probe(struct platform_device *pdev)
goto probe_dma_failed;
}
if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) {
pm_runtime_enable(dev);
pm_runtime_set_autosuspend_delay(dev, CQSPI_AUTOSUSPEND_TIMEOUT);
pm_runtime_use_autosuspend(dev);
pm_runtime_get_noresume(dev);
}
ret = spi_register_controller(host);
if (ret) {
dev_err(&pdev->dev, "failed to register SPI ctlr %d\n", ret);