tree-wide: drop redundant if checks before safe_close()

Replace this:

        if (fd >= 0)
                safe_close(fd);

by this:

        safe_close(fd);

1 files changed, 7 insertions, 0 deletions

diff --git a/coccinelle/safe_close-no-if.cocci b/coccinelle/safe_close-no-if.cocci
new file mode 100644
index 0000000000..81c5678518
--- /dev/null
+++ b/coccinelle/safe_close-no-if.cocci
@@ -0,0 +1,7 @@
+@@
+expression fd;
+@@
+- if (fd >= 0) {
+- fd = safe_close(fd);
+- }
++ fd = safe_close(fd);