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-rw-r--r--arch/tile/kernel/intvec_32.S14
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/tile/kernel/intvec_32.S b/arch/tile/kernel/intvec_32.S
index 3404c75f8e6..84f296ca9e6 100644
--- a/arch/tile/kernel/intvec_32.S
+++ b/arch/tile/kernel/intvec_32.S
@@ -952,7 +952,7 @@ STD_ENTRY(interrupt_return)
* able to safely read all the remaining words on those cache
* lines without waiting for the memory subsystem.
*/
- pop_reg_zero r0, r1, sp, PTREGS_OFFSET_REG(30) - PTREGS_OFFSET_REG(0)
+ pop_reg_zero r0, r28, sp, PTREGS_OFFSET_REG(30) - PTREGS_OFFSET_REG(0)
pop_reg_zero r30, r2, sp, PTREGS_OFFSET_PC - PTREGS_OFFSET_REG(30)
pop_reg_zero r21, r3, sp, PTREGS_OFFSET_EX1 - PTREGS_OFFSET_PC
pop_reg_zero lr, r4, sp, PTREGS_OFFSET_REG(52) - PTREGS_OFFSET_EX1
@@ -1017,7 +1017,17 @@ STD_ENTRY(interrupt_return)
{ move r22, zero; move r23, zero }
{ move r24, zero; move r25, zero }
{ move r26, zero; move r27, zero }
- { move r28, zero; move r29, zero }
+
+ /* Set r1 to errno if we are returning an error, otherwise zero. */
+ {
+ moveli r29, 1024
+ sub r1, zero, r0
+ }
+ slt_u r29, r1, r29
+ {
+ mnz r1, r29, r1
+ move r29, zero
+ }
iret
/*