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| author | Kai Song <songkai01@inspur.com> | 2021-10-06 17:19:26 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-18 21:17:09 +0300 |
| commit | 27f2e5b91452bf4f453a8ba2de0badeafc8b353a (patch) | |
| tree | 864ba7eecc815b285995904a001178ea6a5ad3d9 /drivers/mfd | |
| parent | 5fb2bcf0affeb3db0b28508efe11545ae20566be (diff) | |
| download | linux-27f2e5b91452bf4f453a8ba2de0badeafc8b353a.tar.xz | |
mfd: altera-sysmgr: Fix a mistake caused by resource_size conversion
[ Upstream commit fae2570d629cdd72f0611d015fc4ba705ae5422b ]
The resource_size defines that:
res->end - res->start + 1;
The origin original code is:
sysmgr_config.max_register = res->end - res->start - 3;
So, the correct fix is that:
sysmgr_config.max_register = resource_size(res) - 4;
Fixes: d12edf9661a4 ("mfd: altera-sysmgr: Use resource_size function on resource object")
Signed-off-by: Kai Song <songkai01@inspur.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211006141926.6120-1-songkai01@inspur.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/altera-sysmgr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mfd/altera-sysmgr.c b/drivers/mfd/altera-sysmgr.c index 20cb294c7512..5d3715a28b28 100644 --- a/drivers/mfd/altera-sysmgr.c +++ b/drivers/mfd/altera-sysmgr.c @@ -153,7 +153,7 @@ static int sysmgr_probe(struct platform_device *pdev) if (!base) return -ENOMEM; - sysmgr_config.max_register = resource_size(res) - 3; + sysmgr_config.max_register = resource_size(res) - 4; regmap = devm_regmap_init_mmio(dev, base, &sysmgr_config); } |