1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c
index 37bacfcdbc5d..a72126180e97 100644
--- a/drivers/pnp/pnpbios/bioscalls.c
+++ b/drivers/pnp/pnpbios/bioscalls.c
@@ -283,12 +283,15 @@ int pnp_bios_dev_node_info(struct pnp_dev_node_info *data)
 static int __pnp_bios_get_dev_node(u8 *nodenum, char boot, struct pnp_bios_node *data)
 {
         u16 status;
+        u16 tmp_nodenum;
         if (!pnp_bios_present())
                 return PNP_FUNCTION_NOT_SUPPORTED;
         if ( !boot && pnpbios_dont_use_current_config )
                 return PNP_FUNCTION_NOT_SUPPORTED;
+        tmp_nodenum = *nodenum;
         status = call_pnp_bios(PNP_GET_SYS_DEV_NODE, 0, PNP_TS1, 0, PNP_TS2, boot ? 2 : 1, PNP_DS, 0,
-                               nodenum, sizeof(char), data, 65536);
+                               &tmp_nodenum, sizeof(tmp_nodenum), data, 65536);
+        *nodenum = tmp_nodenum;
         return status;
 }