[PATCH 5.15 71/73] soc: sifive: l2_cache: fix missing iounmap() in error path in sifive_l2_init()

[Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>]

From: Yang Yingliang <yangyingliang@xxxxxxxxxx>

commit 73e770f085023da327dc9ffeb6cd96b0bb22d97e upstream.

Add missing iounmap() before return error from sifive_l2_init().

Fixes: a967a289f169 ("RISC-V: sifive_l2_cache: Add L2 cache controller driver for SiFive SoCs")
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
[conor: ccache -> l2_cache]
Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/soc/sifive/sifive_l2_cache.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

--- a/drivers/soc/sifive/sifive_l2_cache.c
+++ b/drivers/soc/sifive/sifive_l2_cache.c
@@ -212,7 +212,8 @@ static int __init sifive_l2_init(void)
 	intr_num = of_property_count_u32_elems(np, "interrupts");
 	if (!intr_num) {
 		pr_err("L2CACHE: no interrupts property\n");
-		return -ENODEV;
+		rc = -ENODEV;
+		goto err_unmap;
 	}
 
 	for (i = 0; i < intr_num; i++) {
@@ -220,7 +221,7 @@ static int __init sifive_l2_init(void)
 		rc = request_irq(g_irq[i], l2_int_handler, 0, "l2_ecc", NULL);
 		if (rc) {
 			pr_err("L2CACHE: Could not request IRQ %d\n", g_irq[i]);
-			return rc;
+			goto err_unmap;
 		}
 	}
 
@@ -233,5 +234,9 @@ static int __init sifive_l2_init(void)
 	setup_sifive_debug();
 #endif
 	return 0;
+
+err_unmap:
+	iounmap(l2_base);
+	return rc;
 }
 device_initcall(sifive_l2_init);