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-rw-r--r--loginutils/getty.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/loginutils/getty.c b/loginutils/getty.c
index da0dce391..5e161823a 100644
--- a/loginutils/getty.c
+++ b/loginutils/getty.c
@@ -479,7 +479,7 @@ static char *get_logname(char *logname, unsigned size_logname,
default:
if (!isascii(ascval) || !isprint(ascval)) {
/* ignore garbage characters */
- } else if (bp - logname >= size_logname - 1) {
+ } else if ((int)(bp - logname) >= size_logname - 1) {
bb_error_msg_and_die("%s: input overrun", op->tty);
} else {
full_write(1, &c, 1); /* echo the character */