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authorJulia Lawall <julia@diku.dk>2010-10-18 16:11:13 +0200
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-10-18 16:29:24 -0700
commit02ffc5f3f91c265e110ddd1fdd7019a18426ebe5 (patch)
tree0243071f64cda3a3a11de7c6a93635e69d49b38f /sound
parentf6765502f8daae3d237a394889276c8987f3e299 (diff)
downloadlinux-2.6.38-lt-ux500-02ffc5f3f91c265e110ddd1fdd7019a18426ebe5.tar.gz
ASoC: davinci-mcasp.c: Return error code in failure
In this code, 0 is returned on failure, even though other failures return -ENOMEM or other similar values. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @a@ identifier alloc; identifier ret; constant C; expression x; @@ x = alloc(...); if (x == NULL) { <+... \(ret = -C; \| return -C; \) ...+> } @@ identifier f, a.alloc; expression ret; expression x,e1,e2,e3; @@ ret = 0 ... when != ret = e1 *x = alloc(...) ... when != ret = e2 if (x == NULL) { ... when != ret = e3 return ret; } // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/davinci/davinci-mcasp.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index c8e97dcbfff..86918ee1241 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -898,6 +898,7 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
if (!res) {
dev_err(&pdev->dev, "no DMA resource\n");
+ ret = -ENODEV;
goto err_release_region;
}
@@ -912,6 +913,7 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
if (!res) {
dev_err(&pdev->dev, "no DMA resource\n");
+ ret = -ENODEV;
goto err_release_region;
}