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sound/soc/mxs/mxs-saif.c: add missing kfree

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Move the test on pdev->id before the kzalloc to avoid requiring kfree when
the test fails.  This fix was suggested by Wolfram Sang.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
expression E1!=0,E2,E3,E4;
statement S;
iterator I;
@@

(
if (...) { ... when != kfree(x)
               when != x = E3
               when != E3 = x
*  return ...;
 }
... when != x = E2
    when != I(...,x,...) S
if (...) { ... when != x = E4
 kfree(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Dong Aisheng <b29396@freescale.com>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Julia Lawall 2011-08-21 13:18:45 +02:00 committed by Mark Brown
parent bbe8ff5e25
commit 0bb98ba2b0
1 changed files with 3 additions and 2 deletions
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5
sound/soc/mxs/mxs-saif.c
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@ -521,12 +521,13 @@ static int mxs_saif_probe(struct platform_device *pdev)
struct mxs_saif *saif;
int ret = 0;
if (pdev->id >= ARRAY_SIZE(mxs_saif))
return -EINVAL;
saif = kzalloc(sizeof(*saif), GFP_KERNEL);
if (!saif)
return -ENOMEM;
if (pdev->id >= ARRAY_SIZE(mxs_saif))
return -EINVAL;
mxs_saif[pdev->id] = saif;
saif->clk = clk_get(&pdev->dev, NULL);