From: Peter Crosthwaite <peter.crosthwa...@xilinx.com>
Fix an off-by-one error in the logic that checks if a CPU is present.
The ncores variable is a count of cores while the cpu variable is a
0 based index. So if ncores == cpu, cpu is out of range. Fix this
comparison so non-existent CPUs are not probed.
Signed-off-by: Peter Crosthwaite <peter.crosthwa...@xilinx.com>
Signed-off-by: Michal Simek <michal.si...@xilinx.com>
---
arch/arm/mach-zynq/platsmp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-zynq/platsmp.c b/arch/arm/mach-zynq/platsmp.c
index 689fbbc3d9c8..2512624e657d 100644
--- a/arch/arm/mach-zynq/platsmp.c
+++ b/arch/arm/mach-zynq/platsmp.c
@@ -39,7 +39,7 @@ int zynq_cpun_start(u32 address, int cpu)
u32 trampoline_code_size = &zynq_secondary_trampoline_end -
&zynq_secondary_trampoline;
- if (cpu > ncores) {
+ if (cpu >= ncores) {
pr_warn("CPU No. is not available in the system\n");
return -1;
}
--
1.8.4.1
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