From: Sam Bobroff <sam.bobr...@au1.ibm.com>
Currently, rtas_ibm_change_msi() always returns four values even if
less are specified.
Correct this by only returning the fourth parameter if it was
requested.
This is specified by PAPR.
Signed-off-by: Sam Bobroff <sam.bobr...@au1.ibm.com>
Reviewed-by: David Gibson <da...@gibson.dropbear.id.au>
Signed-off-by: David Gibson <da...@gibson.dropbear.id.au>
---
hw/ppc/spapr_pci.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index a2feb4c..6782fd0 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -375,7 +375,9 @@ out:
rtas_st(rets, 0, RTAS_OUT_SUCCESS);
rtas_st(rets, 1, req_num);
rtas_st(rets, 2, ++seq_num);
- rtas_st(rets, 3, ret_intr_type);
+ if (nret > 3) {
+ rtas_st(rets, 3, ret_intr_type);
+ }
trace_spapr_pci_rtas_ibm_change_msi(config_addr, func, req_num, irq);
}
--
2.4.3
