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soc: mediatek: PMIC wrap: Fix possible NULL derefrence.

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of_match_device could return NULL, and so can cause a NULL
pointer dereference later.

Signed-off-by: Shailendra Verma <shailendra.v@samsung.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
This commit is contained in:
shailendra.v@samsung.com 2017-01-27 16:47:48 +05:30 committed by Matthias Brugger
parent f282693f80
commit 58a823dd7b
1 changed files with 5 additions and 0 deletions
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5
drivers/soc/mediatek/mtk-pmic-wrap.c
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@ -1117,6 +1117,11 @@ static int pwrap_probe(struct platform_device *pdev)
const struct of_device_id *of_slave_id = NULL;
struct resource *res;
if (!of_id) {
dev_err(&pdev->dev, "Error: No device match found\n");
return -ENODEV;
}
if (pdev->dev.of_node->child)
of_slave_id = of_match_node(of_slave_match_tbl,
pdev->dev.of_node->child);