linux-kernel - [PATCH] dma: fix returnvar.cocci warnings

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Message-ID: <alpine.DEB.2.10.1511080843100.2637@hadrien>
Date:	Sun, 8 Nov 2015 08:45:26 +0100 (CET)
From:	Julia Lawall <julia.lawall@...6.fr>
To:	Sinan Kaya <okaya@...eaurora.org>
cc:	agross@...eaurora.org, kbuild-all@...org,
	dmaengine@...r.kernel.org, timur@...eaurora.org,
	cov@...eaurora.org, jcm@...hat.com, linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Sinan Kaya <okaya@...eaurora.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Vinod Koul <vinod.koul@...el.com>,
	Dan Williams <dan.j.williams@...el.com>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] dma: fix returnvar.cocci warnings

 Remove unneeded variable used to store return value.

Generated by: scripts/coccinelle/misc/returnvar.cocci

CC: Sinan Kaya <okaya@...eaurora.org>
Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>
---

 hidma_ll.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/drivers/dma/qcom/hidma_ll.c
+++ b/drivers/dma/qcom/hidma_ll.c
@@ -567,14 +567,13 @@ int hidma_ll_resume(struct hidma_lldev *

 static int hidma_ll_hw_start(struct hidma_lldev *lldev)
 {
-	int rc = 0;
 	unsigned long irqflags;

 	spin_lock_irqsave(&lldev->lock, irqflags);
 	writel(lldev->tre_write_offset, lldev->trca + TRCA_DOORBELL_OFFSET);
 	spin_unlock_irqrestore(&lldev->lock, irqflags);

-	return rc;
+	return 0;
 }

 bool hidma_ll_isenabled(struct hidma_lldev *lldev)
@@ -600,7 +599,6 @@ bool hidma_ll_isenabled(struct hidma_lld
 int hidma_ll_queue_request(struct hidma_lldev *lldev, u32 tre_ch)
 {
 	struct hidma_tre *tre;
-	int rc = 0;
 	unsigned long flags;

 	tre = &lldev->trepool[tre_ch];
@@ -618,7 +616,7 @@ int hidma_ll_queue_request(struct hidma_
 	lldev->tre_write_offset = (lldev->tre_write_offset + TRE_SIZE)
 				% lldev->tre_ring_size;
 	spin_unlock_irqrestore(&lldev->lock, flags);
-	return rc;
+	return 0;
 }

 int hidma_ll_start(struct hidma_lldev *lldev)
--
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