bpf: Call kfree(obj) only once in free_one()

A kfree() call is always used at the end of this function implementation.
Thus specify such a function call only once instead of duplicating it
in a previous if branch.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <[e-mail]>
Signed-off-by: Andrii Nakryiko <[e-mail]>
Acked-by: Eduard Zingerman <[e-mail]>
Link: https://lore.kernel.org/bpf/[e-mail]
Signed-off-by: Alexei Starovoitov <[e-mail]>

kernel/bpf/memalloc.c

···
 
 static void free_one(void *obj, bool percpu)
 {
-	if (percpu) {
+	if (percpu)
 		free_percpu(((void __percpu **)obj)[1]);
-		kfree(obj);
-		return;
-	}
 
 	kfree(obj);
 }