[PATCH] memory: atmel-sdramc: check of_device_get_match_data() return value

From: Krzysztof Kozlowski
Date: Wed Apr 07 2021 - 11:44:54 EST


If the driver is probed, the of_device_get_match_data() should not
return NULL, however for sanity check its return value.

Addresses-Coverity: Dereference null return value
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
---
drivers/memory/atmel-sdramc.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/memory/atmel-sdramc.c b/drivers/memory/atmel-sdramc.c
index 9c49d00c2a96..e09b2617f63d 100644
--- a/drivers/memory/atmel-sdramc.c
+++ b/drivers/memory/atmel-sdramc.c
@@ -45,6 +45,8 @@ static int atmel_ramc_probe(struct platform_device *pdev)
struct clk *clk;

caps = of_device_get_match_data(&pdev->dev);
+ if (!caps)
+ return -EINVAL;

if (caps->has_ddrck) {
clk = devm_clk_get(&pdev->dev, "ddrck");
--
2.25.1