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Groups > linux.kernel > #1211539

[PATCH 02/11] soc: ti: knav_qmss_queue: fix error return code

From Julia Lawall <Julia.Lawall@lip6.fr>
Newsgroups linux.kernel
Subject [PATCH 02/11] soc: ti: knav_qmss_queue: fix error return code
Date 2015-08-23 02:30 +0200
Message-ID <q0rkC-1su-13@gated-at.bofh.it> (permalink)
References <q0rkB-1su-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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/soc/ti/knav_qmss_queue.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c
index 6d8646d..822ead8 100644
--- a/drivers/soc/ti/knav_qmss_queue.c
+++ b/drivers/soc/ti/knav_qmss_queue.c
@@ -1768,6 +1768,7 @@ static int knav_queue_probe(struct platform_device *pdev)
 	regions =  of_get_child_by_name(node, "descriptor-regions");
 	if (!regions) {
 		dev_err(dev, "descriptor-regions not specified\n");
+		ret = -ENODEV;
 		goto err;
 	}
 	ret = knav_queue_setup_regions(kdev, regions);

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[PATCH 02/11] soc: ti: knav_qmss_queue: fix error return code Julia Lawall <Julia.Lawall@lip6.fr> - 2015-08-23 02:30 +0200
  Re: [PATCH 02/11] soc: ti: knav_qmss_queue: fix error return code "santosh.shilimkar@oracle.com" <santosh.shilimkar@oracle.com> - 2015-08-23 03:20 +0200

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