powerpc: Use correct ccr bit for syscall error status
The powerpc implementations of syscall_get_error and
syscall_set_return_value should use CCR0:S0 (0x10000000) for testing
and setting syscall error status. Fortunately these APIs don't seem
to be used at the moment.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/include/asm/syscall.h b/arch/powerpc/include/asm/syscall.h
index efa7f0b..23913e9 100644
--- a/arch/powerpc/include/asm/syscall.h
+++ b/arch/powerpc/include/asm/syscall.h
@@ -30,7 +30,7 @@
static inline long syscall_get_error(struct task_struct *task,
struct pt_regs *regs)
{
- return (regs->ccr & 0x1000) ? -regs->gpr[3] : 0;
+ return (regs->ccr & 0x10000000) ? -regs->gpr[3] : 0;
}
static inline long syscall_get_return_value(struct task_struct *task,
@@ -44,10 +44,10 @@
int error, long val)
{
if (error) {
- regs->ccr |= 0x1000L;
+ regs->ccr |= 0x10000000L;
regs->gpr[3] = -error;
} else {
- regs->ccr &= ~0x1000L;
+ regs->ccr &= ~0x10000000L;
regs->gpr[3] = val;
}
}