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* [PATCH v1 1/1] spi: acpi: Free resource list at appropriate time
@ 2026-06-17  9:24 Andy Shevchenko
  2026-06-17 13:58 ` Mark Brown
  0 siblings, 1 reply; 2+ messages in thread
From: Andy Shevchenko @ 2026-06-17  9:24 UTC (permalink / raw)
  To: Mark Brown, linux-spi, linux-kernel; +Cc: Andy Shevchenko

We do unneeded "double free" (emptying an empty list) in one case.

This is not a critical issue at all, the fix just makes code robust
against any possible future changes in the flow.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 76e3563c523f..8b1ad1efddb2 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -2975,12 +2975,12 @@ struct spi_device *acpi_spi_device_alloc(struct spi_controller *ctlr,
 	INIT_LIST_HEAD(&resource_list);
 	ret = acpi_dev_get_resources(adev, &resource_list,
 				     acpi_spi_add_resource, &lookup);
-	acpi_dev_free_resource_list(&resource_list);
-
 	if (ret < 0)
 		/* Found SPI in _CRS but it points to another controller */
 		return ERR_PTR(ret);
 
+	acpi_dev_free_resource_list(&resource_list);
+
 	if (!lookup.max_speed_hz &&
 	    ACPI_SUCCESS(acpi_get_parent(adev->handle, &parent_handle)) &&
 	    device_match_acpi_handle(lookup.ctlr->dev.parent, parent_handle)) {
-- 
2.50.1


^ permalink raw reply	[flat|nested] 2+ messages in thread

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2026-06-17 13:58 ` Mark Brown

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