On Thu, 21 Apr 2022 10:11:30 +0000 Janosch Frank <frankja@xxxxxxxxxxxxx> wrote: > In case of an error we'll currently return with the wrong values in > gr0 and gr1. Let's fix that by restoring the registers before setting > the return value and branching to the return address. > > Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx> Reviewed-by: Claudio Imbrenda <imbrenda@xxxxxxxxxxxxx> > --- > s390x/cpu.S | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/s390x/cpu.S b/s390x/cpu.S > index 82b5e25d..0bd8c0e3 100644 > --- a/s390x/cpu.S > +++ b/s390x/cpu.S > @@ -34,6 +34,7 @@ diag308_load_reset: > stg %r15, GEN_LC_SW_INT_GRS + 15 * 8 > /* Do the reset */ > diag %r0,%r2,0x308 > + RESTORE_REGS_STACK > /* Failure path */ > xgr %r2, %r2 > br %r14
