linux-kernel - [PATCH 5/6] dma: mic_x100_dma: no need to check return value of debugfs

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Message-Id: <20190612122557.24158-5-gregkh@linuxfoundation.org>
Date:   Wed, 12 Jun 2019 14:25:56 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     dan.j.williams@...el.com, vkoul@...nel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sudeep Dutt <sudeep.dutt@...el.com>,
        Ashutosh Dixit <ashutosh.dixit@...el.com>,
        dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 5/6] dma: mic_x100_dma: no need to check return value of debugfs_create functions

When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Sudeep Dutt <sudeep.dutt@...el.com>
Cc: Ashutosh Dixit <ashutosh.dixit@...el.com>
Cc: Dan Williams <dan.j.williams@...el.com>
Cc: Vinod Koul <vkoul@...nel.org>
Cc: dmaengine@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/dma/mic_x100_dma.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/dma/mic_x100_dma.c b/drivers/dma/mic_x100_dma.c
index 6a91e28d537d..584e09661507 100644
--- a/drivers/dma/mic_x100_dma.c
+++ b/drivers/dma/mic_x100_dma.c
@@ -728,10 +728,8 @@ static int mic_dma_driver_probe(struct mbus_device *mbdev)
 	if (mic_dma_dbg) {
 		mic_dma_dev->dbg_dir = debugfs_create_dir(dev_name(&mbdev->dev),
 							  mic_dma_dbg);
-		if (mic_dma_dev->dbg_dir)
-			debugfs_create_file("mic_dma_reg", 0444,
-					    mic_dma_dev->dbg_dir, mic_dma_dev,
-					    &mic_dma_reg_fops);
+		debugfs_create_file("mic_dma_reg", 0444, mic_dma_dev->dbg_dir,
+				    mic_dma_dev, &mic_dma_reg_fops);
 	}
 	return 0;
 }
-- 
2.22.0