From: Clark Wang <xiaoning.wang@nxp.com>
To: broonie@kernel.org
Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/5] spi: lpspi: add NULL check when probe device
Date: Tue, 14 Jul 2020 15:52:48 +0800 [thread overview]
Message-ID: <20200714075251.12777-3-xiaoning.wang@nxp.com> (raw)
In-Reply-To: <20200714075251.12777-1-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>
---
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 a1555bbc5e5a..ca43d93adf30 100644
--- a/drivers/spi/spi-fsl-lpspi.c
+++ b/drivers/spi/spi-fsl-lpspi.c
@@ -841,6 +841,11 @@ 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:[~2020-07-14 7:52 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-14 7:52 [PATCH 0/5] Some bug fix for lpspi Clark Wang
2020-07-14 7:52 ` [PATCH 1/5] spi: lpspi: fix the imbalance of runtime pm function call Clark Wang
2020-07-14 7:52 ` Clark Wang [this message]
2020-07-21 23:44 ` [PATCH 2/5] spi: lpspi: add NULL check when probe device Mark Brown
2020-07-14 7:52 ` [PATCH 3/5] spi: lpspi: fix kernel warning dump when probe fail after calling spi_register Clark Wang
2020-07-14 11:37 ` Mark Brown
2020-07-21 22:47 ` Mark Brown
2020-07-14 7:52 ` [PATCH 4/5] spi: lpspi: handle EPROBE_DEFER when get cs-gpios number Clark Wang
2020-07-14 7:52 ` [PATCH 5/5] spi: lpspi: fix using CS discontinuously on i.MX8DXLEVK Clark Wang
2020-07-22 13:45 ` [PATCH 0/5] Some bug fix for lpspi Mark Brown
2020-07-14 8:48 [PATCH 2/5] spi: lpspi: add NULL check when probe device Markus Elfring
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