Bug #149: Deletion of unnecessary checks before calls of the function "free"

The function "free" is documented in the way that no action shall occur for
a passed null pointer. It is therefore not needed that a function caller
repeats a corresponding check.
http://stackoverflow.com/questions/18775608/free-a-null-pointer-anyway-or-check-first

This issue was fixed by using the software Coccinelle 1.0.0-rc24.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>

7 files changed, 8 insertions, 19 deletions

diff --git a/tests/libtest/lib539.c b/tests/libtest/lib539.c
index 923893fb2..053d29806 100644
--- a/tests/libtest/lib539.c
+++ b/tests/libtest/lib539.c
@@ -83,8 +83,7 @@ int test(char *URL)
 test_cleanup:
 
    curl_slist_free_all(slist);
-   if(newURL)
-     free(newURL);
+   free(newURL);
    curl_easy_cleanup(curl);
    curl_global_cleanup();
 
diff --git a/tests/libtest/lib568.c b/tests/libtest/lib568.c
index 12fc5e5d9..b6f5ab7ca 100644
--- a/tests/libtest/lib568.c
+++ b/tests/libtest/lib568.c
@@ -159,8 +159,7 @@ test_cleanup:
   if(sdpf)
     fclose(sdpf);
 
-  if(stream_uri)
-    free(stream_uri);
+  free(stream_uri);
 
   if(custom_headers)
     curl_slist_free_all(custom_headers);
diff --git a/tests/libtest/lib569.c b/tests/libtest/lib569.c
index 222f1e024..bc4887276 100644
--- a/tests/libtest/lib569.c
+++ b/tests/libtest/lib569.c
@@ -115,9 +115,7 @@ test_cleanup:
   if(idfile)
     fclose(idfile);
 
-  if(stream_uri)
-    free(stream_uri);
-
+  free(stream_uri);
   curl_easy_cleanup(curl);
   curl_global_cleanup();
 
diff --git a/tests/libtest/lib570.c b/tests/libtest/lib570.c
index 93ccab8ea..178f58f96 100644
--- a/tests/libtest/lib570.c
+++ b/tests/libtest/lib570.c
@@ -102,9 +102,7 @@ int test(char *URL)
   }
 
 test_cleanup:
-
-  if(stream_uri)
-    free(stream_uri);
+  free(stream_uri);
 
   curl_easy_cleanup(curl);
   curl_global_cleanup();
diff --git a/tests/libtest/lib571.c b/tests/libtest/lib571.c
index 3270300de..d8dad396b 100644
--- a/tests/libtest/lib571.c
+++ b/tests/libtest/lib571.c
@@ -195,9 +195,7 @@ int test(char *URL)
   }
 
 test_cleanup:
-
-  if(stream_uri)
-    free(stream_uri);
+  free(stream_uri);
 
   if(protofile)
     fclose(protofile);
diff --git a/tests/libtest/lib572.c b/tests/libtest/lib572.c
index 9b23c01a2..fd547b8b3 100644
--- a/tests/libtest/lib572.c
+++ b/tests/libtest/lib572.c
@@ -165,8 +165,7 @@ test_cleanup:
   if(paramsf)
     fclose(paramsf);
 
-  if(stream_uri)
-    free(stream_uri);
+  free(stream_uri);
 
   if(custom_headers)
     curl_slist_free_all(custom_headers);
diff --git a/tests/libtest/lib582.c b/tests/libtest/lib582.c
index 952efb4ed..4c3ea6f60 100644
--- a/tests/libtest/lib582.c
+++ b/tests/libtest/lib582.c
@@ -357,10 +357,8 @@ test_cleanup:
   fclose(hd_src);
 
   /* free local memory */
-  if(sockets.read.sockets)
-    free(sockets.read.sockets);
-  if(sockets.write.sockets)
-    free(sockets.write.sockets);
+  free(sockets.read.sockets);
+  free(sockets.write.sockets);
 
   return res;
 }