memory: stm32_omm: Fix NULL vs IS_ERR() check in probe()

The platform_get_resource_byname() function returns NULL on error.  It
doesn't return error pointers.  Update the check to match.

Fixes: 8181d061dcff ("memory: Add STM32 Octo Memory Manager driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/a1645f1eedaa9b2ae62ac07feed0552eea75bc46.1746781081.git.dan.carpenter@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

diff --git a/drivers/memory/stm32_omm.c b/drivers/memory/stm32_omm.c
index 8704c774e642384cac42c87aebac12db9899c57f..8523d9601af20fc8fe74cceea84e63d253cafec1 100644 (file)
--- a/drivers/memory/stm32_omm.c
+++ b/drivers/memory/stm32_omm.c
@@ -320,8 +320,8 @@ static int stm32_omm_probe(struct platform_device *pdev)
                return PTR_ERR(omm->io_base);
 
        omm->mm_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "memory_map");
-       if (IS_ERR(omm->mm_res))
-               return PTR_ERR(omm->mm_res);
+       if (!omm->mm_res)
+               return -ENODEV;
 
        /* check child's access */
        for_each_child_of_node_scoped(dev->of_node, child) {