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Subject[PATCH 1/15] sound/soc/mxs/mxs-saif.c: add missing iounmap
Date
From: Julia Lawall <Julia.Lawall@lip6.fr>

Add missing iounmap in error handling code, in a case where the function
already preforms iounmap on some other execution path.

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

// <smpl>
@@
expression e;
statement S,S1;
int ret;
@@
e = \(ioremap\|ioremap_nocache\)(...)
... when != iounmap(e)
if (<+...e...+>) S
... when any
when != iounmap(e)
*if (...)
{ ... when != iounmap(e)
return ...; }
... when any
iounmap(e);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
sound/soc/mxs/mxs-saif.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index 049e543..5ee0adb 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -680,7 +680,7 @@ static int mxs_saif_probe(struct platform_device *pdev)
ret = -ENODEV;
dev_err(&pdev->dev, "failed to get dma resource: %d\n",
ret);
- goto failed_ioremap;
+ goto failed_get_resource;
}
saif->dma_param.chan_num = dmares->start;

@@ -739,6 +739,7 @@ failed_register:
failed_get_irq2:
free_irq(saif->irq, saif);
failed_get_irq1:
+failed_get_resource:
iounmap(saif->base);
failed_ioremap:
release_mem_region(iores->start, resource_size(iores));


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