Remove useless checks for NULL before freeing

This patch has been generated by the following Coccinelle semantic patch:
// Remove useless checks for NULL before freeing
//
// free (NULL) is a no-op, so there is no need to avoid it

@@
expression E;
@@
+ free (E);
+ E = NULL;
- if (unlikely (E != NULL)) {
-   free(E);
(
-   E = NULL;
|
-   E = 0;
)
   ...
- }

@@
expression E;
@@
+ free (E);
- if (unlikely (E != NULL)) {
-   free (E);
- }

2 files changed, 2 insertions, 4 deletions

diff --git a/perf/cairo-perf-report.c b/perf/cairo-perf-report.c
index 8ab80905..a04db6bc 100644
--- a/perf/cairo-perf-report.c
+++ b/perf/cairo-perf-report.c
@@ -505,8 +505,7 @@ cairo_perf_report_load (cairo_perf_report_t *report,
 	/* Do nothing on TEST_REPORT_STATUS_COMMENT */
     }
 
-    if (line)
-	free (line);
+    free (line);
 
     if (filename != NULL)
 	fclose (file);
diff --git a/perf/cairo-perf-trace.c b/perf/cairo-perf-trace.c
index ff228824..587e6283 100644
--- a/perf/cairo-perf-trace.c
+++ b/perf/cairo-perf-trace.c
@@ -614,8 +614,7 @@ read_excludes (cairo_perf_t *perf,
 	    perf->num_exclude_names++;
 	}
     }
-    if (line != NULL)
-	free (line);
+    free (line);
 
     fclose (file);