Messages in this thread Patch in this message | | | From | Julia Lawall <> | Subject | [PATCH 4/10] drivers/net/can/flexcan.c: add missing clk_put | Date | Wed, 1 Jun 2011 19:10:07 +0200 |
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From: Julia Lawall <julia@diku.dk>
The failed_get label is used after the call to clk_get has succeeded, so it should be moved up above the call to clk_put.
A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/)
// <smpl> @r exists@ expression e1,e2; statement S; @@
e1 = clk_get@p1(...); ... when != e1 = e2 when != clk_put(e1) when any if (...) { ... when != clk_put(e1) when != if (...) { ... clk_put(e1) ... } * return@p3 ...; } else S // </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
--- drivers/net/can/flexcan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index d499056..121739c 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -978,8 +978,8 @@ static int __devinit flexcan_probe(struct platform_device *pdev) failed_map: release_mem_region(mem->start, mem_size); failed_req: - clk_put(clk); failed_get: + clk_put(clk); failed_clock: return err; }
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