From: Thomas Weißschuh <linux@weissschuh.net>
devm_mutex_init() can fail. With CONFIG_DEBUG_MUTEXES=y the mutex will
be marked as unusable and trigger errors on usage.
Add the missed check.
Fixes: 48900813abd2 ("spi: spi-nxp-fspi: remove the goto in probe")
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20250617-must_check-devm_mutex_init-v7-1-d9e449f4d224@weissschuh.net
---
drivers/spi/spi-nxp-fspi.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/spi-nxp-fspi.c b/drivers/spi/spi-nxp-fspi.c
index e63c77e41823..f3d576505413 100644
--- a/drivers/spi/spi-nxp-fspi.c
+++ b/drivers/spi/spi-nxp-fspi.c
@@ -1273,7 +1273,9 @@ static int nxp_fspi_probe(struct platform_device *pdev)
if (ret)
return dev_err_probe(dev, ret, "Failed to request irq\n");
- devm_mutex_init(dev, &f->lock);
+ ret = devm_mutex_init(dev, &f->lock);
+ if (ret)
+ return dev_err_probe(dev, ret, "Failed to initialize lock\n");
ctlr->bus_num = -1;
ctlr->num_chipselect = NXP_FSPI_MAX_CHIPSELECT;
--
2.39.5 (Apple Git-154)