From: Clark Wang <xiaoning.wang@nxp.com>
To: "broonie@kernel.org" <broonie@kernel.org>
Cc: "linux-spi@vger.kernel.org" <linux-spi@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH 1/3] spi: lpspi: add NULL check when probe device
Date: Tue, 23 Apr 2019 10:46:20 +0000 [thread overview]
Message-ID: <20190423104649.24483-2-xiaoning.wang@nxp.com> (raw)
In-Reply-To: <20190423104649.24483-1-xiaoning.wang@nxp.com>
Add a NULL check for device node and lpspi_platform_info when lpspi
device probe.
Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
---
drivers/spi/spi-fsl-lpspi.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c
index d08e9324140e..19040b5ef349 100644
--- a/drivers/spi/spi-fsl-lpspi.c
+++ b/drivers/spi/spi-fsl-lpspi.c
@@ -845,6 +845,11 @@ static int fsl_lpspi_probe(struct platform_device *pdev)
u32 temp;
bool is_slave;
+ if (!np && !lpspi_platform_info) {
+ dev_err(&pdev->dev, "can't get the platform data\n");
+ return -EINVAL;
+ }
+
is_slave = of_property_read_bool((&pdev->dev)->of_node, "spi-slave");
if (is_slave)
controller = spi_alloc_slave(&pdev->dev,
--
2.17.1
next prev parent reply other threads:[~2019-04-23 10:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-23 10:46 [PATCH 0/3] spi: lpspi: SS function related changes Clark Wang
2019-04-23 10:46 ` Clark Wang [this message]
2019-04-23 11:14 ` [PATCH 1/3] spi: lpspi: add NULL check when probe device Fabio Estevam
2019-04-23 10:46 ` [PATCH 2/3] spi: lpspi: add multi SS support in PIO mode Clark Wang
2019-04-23 11:21 ` Fabio Estevam
2019-04-23 10:46 ` [PATCH 3/3] spi: lpspi: remove fsl_lpspi->chipselect Clark Wang
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