runtime: fix onM test for curg on arm

TBR=iant
CC=golang-codereviews
https://golang.org/cl/137130043

diff --git a/src/pkg/runtime/asm_arm.s b/src/pkg/runtime/asm_arm.s
index 6acf3f73dbe808091d123c0206bd21a714567d3f..3f3b9b7bee102faff27d49ffcfc85d1824f19075 100644 (file)
--- a/src/pkg/runtime/asm_arm.s
+++ b/src/pkg/runtime/asm_arm.s
@@ -198,7 +198,7 @@ TEXT runtime·onM(SB), NOSPLIT, $0-4
        CMP     g, R2
        B.EQ    onm
 
-       MOVW    m_g0(R1), R3
+       MOVW    m_curg(R1), R3
        CMP     g, R3
        B.EQ    oncurg