refs.c: spell NULL pointer as NULL

Ramsay Jones · jrn · commit ce1e84620708 · 2013-10-14T16:10:50.000-07:00
A call to update_ref_lock() passes '0' to the 'int *type_p' parameter.
Noticed by sparse.  ("Using plain integer as NULL pointer")

Signed-off-by: Ramsay Jones &lt;ramsay@ramsay1.demon.co.uk&gt;
Signed-off-by: Jonathan Nieder &lt;jrnieder@gmail.com&gt;
diff --git a/refs.c b/refs.c
@@ -3235,7 +3235,7 @@ int update_ref(const char *action, const char *refname,
 	       int flags, enum action_on_err onerr)
 {
 	struct ref_lock *lock;
-	lock = update_ref_lock(refname, oldval, flags, 0, onerr);
+	lock = update_ref_lock(refname, oldval, flags, NULL, onerr);
 	if (!lock)
 		return 1;
 	return update_ref_write(action, refname, sha1, lock, onerr);

Original file line number	Diff line number	Diff line change
`@@ -3235,7 +3235,7 @@ int update_ref(const char action, const char refname,`
`3235`	`3235`	`int flags, enum action_on_err onerr)`
`3236`	`3236`	`{`
`3237`	`3237`	`struct ref_lock *lock;`
`3238`		`- lock = update_ref_lock(refname, oldval, flags, 0, onerr);`
	`3238`	`+ lock = update_ref_lock(refname, oldval, flags, NULL, onerr);`
`3239`	`3239`	`if (!lock)`
`3240`	`3240`	`return 1;`
`3241`	`3241`	`return update_ref_write(action, refname, sha1, lock, onerr);`