From: Vignesh Raghavendra <vigneshr@ti.com>
To: Lee Jones <lee.jones@linaro.org>
Cc: <linux-kernel@vger.kernel.org>, <linux-omap@vger.kernel.org>,
Vignesh Raghavendra <vigneshr@ti.com>,
Dan Murphy <dmurphy@ti.com>
Subject: [PATCH] mfd: ti_am335x_tscadc: Fix static checker warning
Date: Sat, 9 Nov 2019 10:36:18 +0530 [thread overview]
Message-ID: <20191109050618.20637-1-vigneshr@ti.com> (raw)
It is possible that platform_get_resource() might return NULL and
therefore code needs to check for this condition before
de-referencing the pointer.
Therefore move the de-referencing of 'res' pointer after
devm_ioremap_resource() which would have checked the validity of the
pointer
Reported-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
---
drivers/mfd/ti_am335x_tscadc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c
index fd111296b959..926c289cb040 100644
--- a/drivers/mfd/ti_am335x_tscadc.c
+++ b/drivers/mfd/ti_am335x_tscadc.c
@@ -182,11 +182,11 @@ static int ti_tscadc_probe(struct platform_device *pdev)
tscadc->irq = err;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- tscadc->tscadc_phys_base = res->start;
tscadc->tscadc_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(tscadc->tscadc_base))
return PTR_ERR(tscadc->tscadc_base);
+ tscadc->tscadc_phys_base = res->start;
tscadc->regmap = devm_regmap_init_mmio(&pdev->dev,
tscadc->tscadc_base, &tscadc_regmap_config);
if (IS_ERR(tscadc->regmap)) {
--
2.24.0
next reply other threads:[~2019-11-09 5:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-09 5:06 Vignesh Raghavendra [this message]
2019-11-11 11:26 ` Lee Jones
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