From 222a87f6b94f6f177e896d6fcdc7881480344e34 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Thu, 1 May 2025 17:02:01 +0200 Subject: [PATCH] spi: cadence-quadspi: Assume device could match via platform Driver has only of_device_id table, however it also has MODULE_ALIAS() for platform name, thus assume there is a configuration where this can be loaded outside of OF system. In such case of_device_get_match_data() will return NULL, which is already checked in one place of probe() function but not in the other, leading to Smatch warning: drivers/spi/spi-cadence-quadspi.c:1942 cqspi_probe() error: we previously assumed 'ddata' could be null (see line 1885) Driver should be consistent, so assume device can be matched via platform bus and of_device_get_match_data() can indeed return NULL. This is also possible with malformed DTS on OF-platform: no unit address and device node name matching driver name. Signed-off-by: Krzysztof Kozlowski Link: https://patch.msgid.link/20250501-n-smatch-fixes-v2-3-d2ad9c1f2e67@linaro.org Signed-off-by: Mark Brown --- drivers/spi/spi-cadence-quadspi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spi/spi-cadence-quadspi.c b/drivers/spi/spi-cadence-quadspi.c index c90462783b3f9..fe0f122f07b02 100644 --- a/drivers/spi/spi-cadence-quadspi.c +++ b/drivers/spi/spi-cadence-quadspi.c @@ -1949,7 +1949,7 @@ static int cqspi_probe(struct platform_device *pdev) host->num_chipselect = cqspi->num_chipselect; - if (ddata->quirks & CQSPI_SUPPORT_DEVICE_RESET) + if (ddata && (ddata->quirks & CQSPI_SUPPORT_DEVICE_RESET)) cqspi_device_reset(cqspi); if (cqspi->use_direct_mode) { -- 2.50.1