linux-kernel - [PATCH v9 03/18] media: platform: Improve getting and requesting irq flow for bug fixing

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Message-ID: <20200604072708.9468-4-xia.jiang@mediatek.com>
Date:   Thu, 4 Jun 2020 15:26:53 +0800
From:   Xia Jiang <xia.jiang@...iatek.com>
To:     Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Rick Chang <rick.chang@...iatek.com>
CC:     <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Tomasz Figa <tfiga@...omium.org>,
        <srv_heupstream@...iatek.com>, <senozhatsky@...omium.org>,
        <mojahsu@...omium.org>, <drinkcat@...omium.org>,
        <maoguang.meng@...iatek.com>, <sj.huang@...iatek.com>,
        Xia Jiang <xia.jiang@...iatek.com>
Subject: [PATCH v9 03/18] media: platform: Improve getting and requesting irq flow for bug fixing

Delete platform_get_resource operation for irq.
Return actual value rather than EINVAL when fail to get and request
irq.

Reviewed-by: Tomasz Figa <tfiga@...omium.org>
Signed-off-by: Xia Jiang <xia.jiang@...iatek.com>
---
v9: no changes
---
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
index 67a022d04df7..2677580941b0 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
@@ -1103,12 +1103,10 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	dec_irq = platform_get_irq(pdev, 0);
-	if (!res || dec_irq < 0) {
+	if (dec_irq < 0) {
 		dev_err(&pdev->dev, "Failed to get dec_irq %d.\n", dec_irq);
-		ret = -EINVAL;
-		return ret;
+		return dec_irq;
 	}
 
 	ret = devm_request_irq(&pdev->dev, dec_irq, mtk_jpeg_dec_irq, 0,
@@ -1116,7 +1114,6 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to request dec_irq %d (%d)\n",
 			dec_irq, ret);
-		ret = -EINVAL;
 		goto err_req_irq;
 	}
 
-- 
2.18.0