This prevent NULL pointer dereference if res is NULL.
Signed-off-by: Axel Lin <axel....@ingics.com>
---
This patch replaces [PATCH] phy: hix5hd2-sata: Convert to use
devm_ioremap_resource,
as zhangfei pinted out that the memory region is shared with sata controller so
devm_request_mem_region would fail.
drivers/phy/phy-hix5hd2-sata.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/phy/phy-hix5hd2-sata.c b/drivers/phy/phy-hix5hd2-sata.c
index 34915b4..d6b2265 100644
--- a/drivers/phy/phy-hix5hd2-sata.c
+++ b/drivers/phy/phy-hix5hd2-sata.c
@@ -147,6 +147,9 @@ static int hix5hd2_sata_phy_probe(struct platform_device
*pdev)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -EINVAL;
+
priv->base = devm_ioremap(dev, res->start, resource_size(res));
if (!priv->base)
return -ENOMEM;
--
1.9.1
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