check all mem allocations

1 files changed, 5 insertions, 5 deletions

diff --git a/lineset.c b/lineset.c
index 47c3de4..7a244e5 100644
--- a/lineset.c
+++ b/lineset.c
@@ -12,9 +12,9 @@ void ensure_line_length(line_t *l, int len){
 
 	if (l->sz < len + 1){
 		tmp = realloc(l->s, (len+1) * 2 * sizeof(char));
-		if (!tmp){
+		if (tmp == NULL){
 			fprintf(stderr, "Unable to allocate string\n");
-			cleanup(-1);
+			cleanup(1);
 		}
 		l->s = tmp;
 		l->sz = (len + 1) * 2;
@@ -29,7 +29,7 @@ void alloc_line(line_t *l){
 	tmp = malloc((l->sz) * sizeof(char));
 	if (tmp == NULL){
 		fprintf(stderr, "unable to allocate line\n");
-		cleanup(-1);
+		cleanup(1);
 	}
 	l->s = tmp;
 	memset(l->s, BG, l->sz);
@@ -46,7 +46,7 @@ void ensure_num_lines(lineset_t *ls, int n){
 		tmp = realloc(ls->l, (n + LONG_STEP) * sizeof(line_t));
 		if (tmp == NULL){
 			fprintf(stderr, "Unable to allocate memory for more lines");
-			cleanup(-1);
+			cleanup(1);
 		}
 		else {
 			ls->l = tmp;
@@ -147,7 +147,7 @@ void copy_lines_to_ring(int y1, int y2, int which){
 		tmp = realloc(undo, (undo_sz + 10) * sizeof(lineset_t));
 		if (tmp == NULL){
 			fprintf(stderr, "Error allocating undo buffer");
-			cleanup(-1);
+			cleanup(1);
 		}
 		undo = tmp;
 		for (i=0; i<10; i++){