From f963e5cc8744ec09fefecce5f512993614b245f4 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Wed, 26 Sep 2018 15:19:34 -0400
Subject: [PATCH] pnm: Don't get into infinite loops on truncated files.

---
 IMG_pnm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/IMG_pnm.c b/IMG_pnm.c
index 0450d9e9..4c3707ec 100644
--- a/IMG_pnm.c
+++ b/IMG_pnm.c
@@ -73,7 +73,7 @@ static int ReadNumber(SDL_RWops *src)
     /* Skip leading whitespace */
     do {
         if ( ! SDL_RWread(src, &ch, 1, 1) ) {
-            return(0);
+            return(-1);
         }
         /* Eat comments as whitespace */
         if ( ch == '#' ) {  /* Comment is '#' to end of line */