clk: mmp: clk-of-pxa1928: Free memory obtained by kzalloc

Free memory, if init is not successful.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

drivers/clk/mmp/clk-of-pxa1928.c

@@ -216,6 +216,7 @@ static void __init pxa1928_mpmu_clk_init(struct device_node *np)
 	pxa_unit->mpmu_base = of_iomap(np, 0);
 	if (!pxa_unit->mpmu_base) {
 		pr_err("failed to map mpmu registers\n");
+		kfree(pxa_unit);
 		return;
 	}
 
@@ -234,6 +235,7 @@ static void __init pxa1928_apmu_clk_init(struct device_node *np)
 	pxa_unit->apmu_base = of_iomap(np, 0);
 	if (!pxa_unit->apmu_base) {
 		pr_err("failed to map apmu registers\n");
+		kfree(pxa_unit);
 		return;
 	}
 
@@ -254,6 +256,7 @@ static void __init pxa1928_apbc_clk_init(struct device_node *np)
 	pxa_unit->apbc_base = of_iomap(np, 0);
 	if (!pxa_unit->apbc_base) {
 		pr_err("failed to map apbc registers\n");
+		kfree(pxa_unit);
 		return;
 	}