rtc: bq4802: add error handling for devm_ioremap
[ Upstream commit 7874b91986
]
When devm_ioremap fails, the lack of error-handling code may
cause unexpected results.
This patch adds error-handling code after calling devm_ioremap.
Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/10/head
parent
bb2874bba8
commit
8be9576222
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@ -164,6 +164,10 @@ static int bq4802_probe(struct platform_device *pdev)
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} else if (p->r->flags & IORESOURCE_MEM) {
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p->regs = devm_ioremap(&pdev->dev, p->r->start,
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resource_size(p->r));
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if (!p->regs){
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err = -ENOMEM;
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goto out;
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}
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p->read = bq4802_read_mem;
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p->write = bq4802_write_mem;
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} else {
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