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clk: sunxi: fix devm_ioremap_resource error detection code

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devm_ioremap_resource returns an ERR_PTR value, not NULL, on failure.

A simplified version of the semantic match that finds this problem is as
follows:

// <smpl>
@@
expression e,e1;
statement S;
@@

*e = devm_ioremap_resource(...);
if (!e1) S

// </smpl>

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Acked-by Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
This commit is contained in:
Himangi Saraogi 2014-06-28 22:53:55 +05:30 committed by Mike Turquette
parent 2a96dfa49c
commit c3dcac875e
1 changed files with 1 additions and 1 deletions
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2
drivers/clk/sunxi/clk-sun6i-apb0-gates.c
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@ -29,7 +29,7 @@ static int sun6i_a31_apb0_gates_clk_probe(struct platform_device *pdev)
r = platform_get_resource(pdev, IORESOURCE_MEM, 0); r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
reg = devm_ioremap_resource(&pdev->dev, r); reg = devm_ioremap_resource(&pdev->dev, r);
if (!reg) if (IS_ERR(reg))
return PTR_ERR(reg); return PTR_ERR(reg);
clk_parent = of_clk_get_parent_name(np, 0); clk_parent = of_clk_get_parent_name(np, 0);