linux-kernel - [PATCH] media: cxd2880-spi: fix probe when dvb

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Message-Id: <1541681088-7385-1-git-send-email-narmstrong@baylibre.com>
Date:   Thu,  8 Nov 2018 13:44:48 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Yasunari.Takiguchi@...y.com
Cc:     Neil Armstrong <narmstrong@...libre.com>, mchehab@...nel.org,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] media: cxd2880-spi: fix probe when dvb_attach fails

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>
---
 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 11ce510..c437309 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;
 	}
 
-- 
2.7.4