[PATCH 3.13 088/151] clk: s2mps11: Fix possible NULL pointer dereference
Kamal Mostafa
kamal at canonical.com
Fri May 2 15:37:56 UTC 2014
3.13.11.1 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Krzysztof Kozlowski <k.kozlowski at samsung.com>
commit 238e14055da87d0d012257788e39fe0df3a82226 upstream.
If parent device does not have of_node set the s2mps11_clk_parse_dt()
returned NULL. This NULL was later passed to of_clk_add_provider() which
dereferenced it in pr_debug() call.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski at samsung.com>
Signed-off-by: Mike Turquette <mturquette at linaro.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
drivers/clk/clk-s2mps11.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
index 00a3abe..27c83e4 100644
--- a/drivers/clk/clk-s2mps11.c
+++ b/drivers/clk/clk-s2mps11.c
@@ -130,7 +130,7 @@ static struct device_node *s2mps11_clk_parse_dt(struct platform_device *pdev)
int i;
if (!iodev->dev->of_node)
- return NULL;
+ return ERR_PTR(-EINVAL);
clk_np = of_find_node_by_name(iodev->dev->of_node, "clocks");
if (!clk_np) {
--
1.9.1
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