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authorOliver O'Halloran <oohall@gmail.com>2018-12-07 02:17:09 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2018-12-07 23:32:02 +1100
commit59613526117b0595cb7b04835390ecd5175f9cd4 (patch)
treed121db75520ea00d9377453819c6846f3bc16760 /arch
parent14ebfec0712f66a4ef037fb7ac0df6a600584356 (diff)
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 <oohall@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/platforms/pseries/papr_scm.c2
1 files changed, 1 insertions, 1 deletions
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;