From a47b7cd3aca70e9a0bddf8146eb4ab0cbd19c2c3 Mon Sep 17 00:00:00 2001
From: tbeu <tbeu@users.noreply.github.com>
Date: Fri, 15 Nov 2019 23:20:41 +0100
Subject: [PATCH] Fix memory leak

As reported by https://github.com/tbeu/matio/issues/131

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
[Retrieved from:
https://github.com/tbeu/matio/commit/a47b7cd3aca70e9a0bddf8146eb4ab0cbd19c2c3]
---
 src/mat.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/mat.c b/src/mat.c
index c9c6bd1..e62a9d2 100644
--- a/src/mat.c
+++ b/src/mat.c
@@ -220,6 +220,11 @@ int SafeMulDims(const matvar_t *matvar, size_t* nelems)
 {
     int i;
 
+    if ( matvar->rank == 0 ) {
+        *nelems = 0;
+        return 0;
+    }
+
     for ( i = 0; i < matvar->rank; i++ ) {
         if ( !psnip_safe_size_mul(nelems, *nelems, matvar->dims[i]) ) {
             *nelems = 0;
@@ -1640,7 +1645,7 @@ Mat_VarFree(matvar_t *matvar)
         }
 #endif
         if ( NULL != matvar->internal->fieldnames &&
-             matvar->internal->num_fields > 0 ) {
+            matvar->internal->num_fields > 0 ) {
             size_t i;
             for ( i = 0; i < matvar->internal->num_fields; i++ ) {
                 if ( NULL != matvar->internal->fieldnames[i] )