powerpc: sysdev: add missing iounmap() on error in mpic_msgr_probe()
[ Upstream commit ffa1797040
]
I noticed that iounmap() of msgr_block_addr before return from
mpic_msgr_probe() in the error handling case is missing. So use
devm_ioremap() instead of just ioremap() when remapping the message
register block, so the mapping will be automatically released on
probe failure.
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201028091551.136400-1-miaoqinglang@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
parent
a95049c514
commit
22f815627c
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@ -191,7 +191,7 @@ static int mpic_msgr_probe(struct platform_device *dev)
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/* IO map the message register block. */
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of_address_to_resource(np, 0, &rsrc);
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msgr_block_addr = ioremap(rsrc.start, resource_size(&rsrc));
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msgr_block_addr = devm_ioremap(&dev->dev, rsrc.start, resource_size(&rsrc));
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if (!msgr_block_addr) {
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dev_err(&dev->dev, "Failed to iomap MPIC message registers");
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return -EFAULT;
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