Commit fae2570d authored by Kai Song's avatar Kai Song Committed by Lee Jones
Browse files

mfd: altera-sysmgr: Fix a mistake caused by resource_size conversion 



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: d12edf96 ("mfd: altera-sysmgr: Use resource_size function on resource object")
Signed-off-by: default avatarKai Song <songkai01@inspur.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211006141926.6120-1-songkai01@inspur.com
parent 8616f7ee

drivers/mfd/altera-sysmgr.c

+1 −1
Original line number Diff line number Diff line
@@ -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);

	}