[PATCH 1/3] lpd: Validate get_indicator_for_loc_code() return value

Just to be on safer side, validate get_indicator_for_loc_code() return
value.

Signed-off-by: Vasant Hegde <[email protected]>
---
 lpd/lp_diag.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lpd/lp_diag.c b/lpd/lp_diag.c
index cce8e87..c80f302 100644
--- a/lpd/lp_diag.c
+++ b/lpd/lp_diag.c
@@ -758,6 +758,14 @@ UI_commit(WINDOW *my_menu_win, MENU *my_menu,
 		if (!strcmp(desc, "loc")) {
 			name = (char *)item_name(items[i]);
 			loc = get_indicator_for_loc_code(ident_list, name);
+			if (!loc) {
+				 if (cur_state[i] == '+') {
+					 cur_state[i] = prev_state[i];
+					 err = 1;
+				 }
+				continue;
+			}
+
 			rc = get_indicator_state(LED_TYPE_IDENT, loc, &ident);
 			if (rc) {
 				if (cur_state[i] == '+') {


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