linux-kernel - [PATCH 4.19 165/243] media: cxd2880-spi: fix probe when dvb

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Message-Id: <20191211150350.308111175@linuxfoundation.org>
Date:   Wed, 11 Dec 2019 16:05:27 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Neil Armstrong <narmstrong@...libre.com>,
        Yasunari Takiguchi <Yasunari.Takiguchi@...y.com>,
        Sean Young <sean@...s.org>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 165/243] media: cxd2880-spi: fix probe when dvb_attach fails

From: Neil Armstrong <narmstrong@...libre.com>

[ Upstream commit 458ffce1cb46e46e3cec48b625ed142250475708 ]

When dvb_attach fails, probe returns 0, and remove crashes afterwards.
This patch sets the return value to -ENODEV when attach fails.

Fixes: bd24fcddf6b8 ("media: cxd2880-spi: Add support for CXD2880 SPI interface")

Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
Acked-by: Yasunari Takiguchi <Yasunari.Takiguchi@...y.com>
Signed-off-by: Sean Young <sean@...s.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/media/spi/cxd2880-spi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/spi/cxd2880-spi.c b/drivers/media/spi/cxd2880-spi.c
index 11ce5101e19f6..c43730977f53c 100644
--- a/drivers/media/spi/cxd2880-spi.c
+++ b/drivers/media/spi/cxd2880-spi.c
@@ -536,6 +536,7 @@ cxd2880_spi_probe(struct spi_device *spi)
 
 	if (!dvb_attach(cxd2880_attach, &dvb_spi->dvb_fe, &config)) {
 		pr_err("cxd2880_attach failed\n");
+		ret = -ENODEV;
 		goto fail_attach;
 	}
 
-- 
2.20.1