[MIPS] SMTC: Fix crash if # of TC's > # of VPE's after pt_regs irq cleanup.

[pandora-kernel.git] / arch / mips / kernel / entry.S

diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
index 417c08a..f10b6a1 100644 (file)
--- a/arch/mips/kernel/entry.S
+++ b/arch/mips/kernel/entry.S
@@ -83,7 +83,10 @@ FEXPORT(syscall_exit)
 FEXPORT(restore_all)                   # restore full frame
 #ifdef CONFIG_MIPS_MT_SMTC
 /* Detect and execute deferred IPI "interrupts" */
+       LONG_L  s0, TI_REGS($28)
+       LONG_S  sp, TI_REGS($28)
        jal     deferred_smtc_ipi
+       LONG_S  s0, TI_REGS($28)
 /* Re-arm any temporarily masked interrupts not explicitly "acked" */
        mfc0    v0, CP0_TCSTATUS
        ori     v1, v0, TCSTATUS_IXMT