Messages in this thread Patch in this message | | | From | Julia Lawall <> | Subject | [PATCH 6/6] dmaengine: ste_dma40: fix error return code | Date | Sat, 22 Nov 2014 15:39:19 +0100 |
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From: Julia Lawall <Julia.Lawall@lip6.fr>
Return a negative error code on failure.
A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/)
// <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
--- drivers/dma/ste_dma40.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 7de218c..c62d26b 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -3432,6 +3432,7 @@ static int __init d40_lcla_allocate(struct d40_base *base) d40_err(base->dev, "Failed to allocate %d pages.\n", base->lcla_pool.pages); + ret = -ENOMEM; for (j = 0; j < i; j++) free_pages(page_list[j], base->lcla_pool.pages);
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