1 files changed, 11 insertions, 7 deletions

diff --git a/src/lib/libcrypto/mem.c b/src/lib/libcrypto/mem.c
index 29df7d35b2..dd86733b77 100644
--- a/src/lib/libcrypto/mem.c
+++ b/src/lib/libcrypto/mem.c
@@ -252,7 +252,7 @@ void *CRYPTO_malloc_locked(int num, const char *file, int line)
         void *ret = NULL;
         extern unsigned char cleanse_ctr;
 
-        if (num < 0) return NULL;
+        if (num <= 0) return NULL;
 
         allow_customize = 0;
         if (malloc_debug_func != NULL)
@@ -293,7 +293,7 @@ void *CRYPTO_malloc(int num, const char *file, int line)
         void *ret = NULL;
         extern unsigned char cleanse_ctr;
 
-        if (num < 0) return NULL;
+        if (num <= 0) return NULL;
 
         allow_customize = 0;
         if (malloc_debug_func != NULL)
@@ -324,7 +324,7 @@ void *CRYPTO_realloc(void *str, int num, const char *file, int line)
         if (str == NULL)
                 return CRYPTO_malloc(num, file, line);
 
-        if (num < 0) return NULL;
+        if (num <= 0) return NULL;
  
         if (realloc_debug_func != NULL)
                 realloc_debug_func(str, NULL, num, file, line, 0);
@@ -346,17 +346,21 @@ void *CRYPTO_realloc_clean(void *str, int old_len, int num, const char *file,
         if (str == NULL)
                 return CRYPTO_malloc(num, file, line);
  
-        if (num < 0) return NULL;
+        if (num <= 0) return NULL;
  
         if (realloc_debug_func != NULL)
                 realloc_debug_func(str, NULL, num, file, line, 0);
         ret=malloc_ex_func(num,file,line);
         if(ret)
+                {
                 memcpy(ret,str,old_len);
-        OPENSSL_cleanse(str,old_len);
-        free_func(str);
+                OPENSSL_cleanse(str,old_len);
+                free_func(str);
+                }
 #ifdef LEVITTE_DEBUG_MEM
-        fprintf(stderr, "LEVITTE_DEBUG_MEM:         | 0x%p -> 0x%p (%d)\n", str, ret, num);
+        fprintf(stderr,
+                "LEVITTE_DEBUG_MEM:         | 0x%p -> 0x%p (%d)\n",
+                str, ret, num);
 #endif
         if (realloc_debug_func != NULL)
                 realloc_debug_func(str, ret, num, file, line, 1);