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Diffstat (limited to 'arch/parisc/kernel/syscall.S')
-rw-r--r--arch/parisc/kernel/syscall.S4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 9f22195b90ed..f68eedc72484 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -631,6 +631,7 @@ cas_action:
sub,<> %r28, %r25, %r0
2: stw,ma %r24, 0(%r26)
/* Free lock */
+ sync
stw,ma %r20, 0(%sr2,%r20)
#if ENABLE_LWS_DEBUG
/* Clear thread register indicator */
@@ -645,6 +646,7 @@ cas_action:
3:
/* Error occurred on load or store */
/* Free lock */
+ sync
stw %r20, 0(%sr2,%r20)
#if ENABLE_LWS_DEBUG
stw %r0, 4(%sr2,%r20)
@@ -846,6 +848,7 @@ cas2_action:
cas2_end:
/* Free lock */
+ sync
stw,ma %r20, 0(%sr2,%r20)
/* Enable interrupts */
ssm PSW_SM_I, %r0
@@ -856,6 +859,7 @@ cas2_end:
22:
/* Error occurred on load or store */
/* Free lock */
+ sync
stw %r20, 0(%sr2,%r20)
ssm PSW_SM_I, %r0
ldo 1(%r0),%r28