From: Oliver O'Halloran Date: Thu, 6 Dec 2018 15:17:09 +0000 (+1100) Subject: powerpc/papr_scm: Fix resource end address X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=59613526117b0595cb7b04835390ecd5175f9cd4;p=openwrt%2Fstaging%2Fblogic.git powerpc/papr_scm: Fix resource end address Fix an off-by-one error in the memory resource range. This resource is used to determine the address range of the memory to be hot-plugged as ZONE_DEVICE memory. The current end address results in the kernel attempting to map an additional memblock and the hypervisor may reject the mapping resulting in the entire hot-plug failing. Fixes: b5beae5e224f ("powerpc/pseries: Add driver for PAPR SCM regions") Signed-off-by: Oliver O'Halloran Signed-off-by: Michael Ellerman --- diff --git a/arch/powerpc/platforms/pseries/papr_scm.c b/arch/powerpc/platforms/pseries/papr_scm.c index ee9372b65ca5..390badd33547 100644 --- a/arch/powerpc/platforms/pseries/papr_scm.c +++ b/arch/powerpc/platforms/pseries/papr_scm.c @@ -296,7 +296,7 @@ static int papr_scm_probe(struct platform_device *pdev) /* setup the resource for the newly bound range */ p->res.start = p->bound_addr; - p->res.end = p->bound_addr + p->blocks * p->block_size; + p->res.end = p->bound_addr + p->blocks * p->block_size - 1; p->res.name = pdev->name; p->res.flags = IORESOURCE_MEM;