dmaengine: ste_dma40: fix error return code

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>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 5fe59335e247ef81518a55fff496256009eafbcf..d2d084110d12bd9be321ce9282cf3232eceb4667 100644 (file)
--- 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);