[hackers] [slock] Add cleanup() to do free(locks) + XCloseDisplay() || Quentin Rameau

[git]

commit 1f66885fbf36c726b7615060d3c98cbf74218d13
Author:     Quentin Rameau <quinq@fifth.space>
AuthorDate: Thu Sep 1 13:46:19 2016 +0200
Commit:     Markus Teich <markus.te...@stusta.mhn.de>
CommitDate: Fri Sep 2 10:50:32 2016 +0200

    Add cleanup() to do free(locks) + XCloseDisplay()

diff --git a/slock.c b/slock.c
index 9ec2f71..4980325 100644
--- a/slock.c
+++ b/slock.c
@@ -230,6 +230,13 @@ unlockscreen(Display *dpy, Lock *lock)
        free(lock);
 }
 
+static void
+cleanup(Display *dpy)
+{
+       free(locks);
+       XCloseDisplay(dpy);
+}
+
 static Lock *
 lockscreen(Display *dpy, int screen)
 {
@@ -349,8 +356,7 @@ main(int argc, char **argv) {
        /* did we actually manage to lock anything? */
        if (nlocks == 0) {
                /* nothing to protect */
-               free(locks);
-               XCloseDisplay(dpy);
+               cleanup(dpy);
                return 1;
        }
 
@@ -358,8 +364,7 @@ main(int argc, char **argv) {
        if (argc > 0) {
                switch (fork()) {
                case -1:
-                       free(locks);
-                       XCloseDisplay(dpy);
+                       cleanup(dpy);
                        die("slock: fork failed: %s\n", strerror(errno));
                case 0:
                        if (close(ConnectionNumber(dpy)) < 0)
@@ -382,8 +387,7 @@ main(int argc, char **argv) {
        for (s = 0; s < nscreens; s++)
                unlockscreen(dpy, locks[s]);
 
-       free(locks);
-       XCloseDisplay(dpy);
+       cleanup(dpy);
 
        return 0;
 }