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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2018-08-08 14:57:24 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-15 09:45:30 +0200 |
| commit | af675a6eefe905585bf954d0db309fdc022c6af2 (patch) | |
| tree | dafc207ad6ea9ac92abcf6ec53d048f2ad6e5c6e /arch | |
| parent | c20a5e06b75063d0903872adf583b38cd84966e5 (diff) | |
| download | linux-exynos-af675a6eefe905585bf954d0db309fdc022c6af2.tar.gz linux-exynos-af675a6eefe905585bf954d0db309fdc022c6af2.tar.bz2 linux-exynos-af675a6eefe905585bf954d0db309fdc022c6af2.zip | |
powerpc: Fix size calculation using resource_size()
[ Upstream commit c42d3be0c06f0c1c416054022aa535c08a1f9b39 ]
The problem is the the calculation should be "end - start + 1" but the
plus one is missing in this calculation.
Fixes: 8626816e905e ("powerpc: add support for MPIC message register API")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/sysdev/mpic_msgr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/mpic_msgr.c b/arch/powerpc/sysdev/mpic_msgr.c index eb69a5186243..280e964e1aa8 100644 --- a/arch/powerpc/sysdev/mpic_msgr.c +++ b/arch/powerpc/sysdev/mpic_msgr.c @@ -196,7 +196,7 @@ static int mpic_msgr_probe(struct platform_device *dev) /* IO map the message register block. */ of_address_to_resource(np, 0, &rsrc); - msgr_block_addr = ioremap(rsrc.start, rsrc.end - rsrc.start); + msgr_block_addr = ioremap(rsrc.start, resource_size(&rsrc)); if (!msgr_block_addr) { dev_err(&dev->dev, "Failed to iomap MPIC message registers"); return -EFAULT; |