tree-wide: use coccinelle to patch a lot of code to use mfree()

This replaces this:

        free(p);
        p = NULL;

by this:

        p = mfree(p);

Change generated using coccinelle. Semantic patch is added to the
sources.

4 files changed, 6 insertions, 12 deletions

diff --git a/src/import/export-tar.c b/src/import/export-tar.c
index 5adc748c50..43fa9d1b03 100644
--- a/src/import/export-tar.c
+++ b/src/import/export-tar.c
@@ -287,8 +287,7 @@ int tar_export_start(TarExport *e, const char *path, int fd, ImportCompressType
                 if (r >= 0)
                         e->quota_referenced = q.referenced;
 
-                free(e->temp_path);
-                e->temp_path = NULL;
+                e->temp_path = mfree(e->temp_path);
 
                 r = tempfn_random(path, NULL, &e->temp_path);
                 if (r < 0)
@@ -298,8 +297,7 @@ int tar_export_start(TarExport *e, const char *path, int fd, ImportCompressType
                 r = btrfs_subvol_snapshot_fd(sfd, e->temp_path, BTRFS_SNAPSHOT_READ_ONLY|BTRFS_SNAPSHOT_RECURSIVE);
                 if (r < 0) {
                         log_debug_errno(r, "Couldn't create snapshot %s of %s, not exporting atomically: %m", e->temp_path, path);
-                        free(e->temp_path);
-                        e->temp_path = NULL;
+                        e->temp_path = mfree(e->temp_path);
                 }
         }
 
diff --git a/src/import/import-raw.c b/src/import/import-raw.c
index a27e81bbd4..5f7d25d063 100644
--- a/src/import/import-raw.c
+++ b/src/import/import-raw.c
@@ -249,8 +249,7 @@ static int raw_import_finish(RawImport *i) {
         if (r < 0)
                 return log_error_errno(r, "Failed to move image into place: %m");
 
-        free(i->temp_path);
-        i->temp_path = NULL;
+        i->temp_path = mfree(i->temp_path);
 
         return 0;
 }
diff --git a/src/import/import-tar.c b/src/import/import-tar.c
index 7ffe83cc33..d2bfb30238 100644
--- a/src/import/import-tar.c
+++ b/src/import/import-tar.c
@@ -205,8 +205,7 @@ static int tar_import_finish(TarImport *i) {
         if (r < 0)
                 return log_error_errno(r, "Failed to move image into place: %m");
 
-        free(i->temp_path);
-        i->temp_path = NULL;
+        i->temp_path = mfree(i->temp_path);
 
         return 0;
 }
diff --git a/src/import/pull-dkr.c b/src/import/pull-dkr.c
index 5ff49baa22..0dab184af1 100644
--- a/src/import/pull-dkr.c
+++ b/src/import/pull-dkr.c
@@ -1211,10 +1211,8 @@ static void dkr_pull_job_on_finished(PullJob *j) {
                 log_info("Completed writing to layer %s.", i->final_path);
 
                 i->layer_job = pull_job_unref(i->layer_job);
-                free(i->temp_path);
-                i->temp_path = NULL;
-                free(i->final_path);
-                i->final_path = NULL;
+                i->temp_path = mfree(i->temp_path);
+                i->final_path = mfree(i->final_path);
 
                 i->current_ancestry ++;
                 r = dkr_pull_pull_layer(i);