1 files changed, 17 insertions, 19 deletions

diff --git a/libbb/match_fstype.c b/libbb/match_fstype.c
index 99e276784..9360e757a 100644
--- a/libbb/match_fstype.c
+++ b/libbb/match_fstype.c
@@ -5,40 +5,38 @@
  * This allows us to match fstypes that start with no like so
  *   mount -at ,noddy
  *
- * Returns 0 for a match, otherwise -1
+ * Returns 1 for a match, otherwise 0
  *
  * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
 #include "libbb.h"
 
-int FAST_FUNC match_fstype(const struct mntent *mt, const char *fstype)
+int FAST_FUNC match_fstype(const struct mntent *mt, const char *t_fstype)
 {
-        int no = 0;
+        int match = 1;
         int len;
 
-        if (!mt)
-                return -1;
+        if (!t_fstype)
+                return match;
 
-        if (!fstype)
-                return 0;
-
-        if (fstype[0] == 'n' && fstype[1] == 'o') {
-                no = -1;
-                fstype += 2;
+        if (t_fstype[0] == 'n' && t_fstype[1] == 'o') {
+                match--;
+                t_fstype += 2;
         }
 
         len = strlen(mt->mnt_type);
-        while (fstype) {
-                if (!strncmp(mt->mnt_type, fstype, len)
-                 && (!fstype[len] || fstype[len] == ',')
+        while (1) {
+                if (strncmp(mt->mnt_type, t_fstype, len) == 0
+                 && (t_fstype[len] == '\0' || t_fstype[len] == ',')
                 ) {
-                        return no;
+                        return match;
                 }
-                fstype = strchr(fstype, ',');
-                if (fstype)
-                        fstype++;
+                t_fstype = strchr(t_fstype, ',');
+                if (!t_fstype)
+                        break;
+                t_fstype++;
         }
 
-        return -(no + 1);
+        return !match;
 }