[PATCH 5.15 72/73] soc: sifive: l2_cache: fix missing free_irq() in error path in sifive_l2_init()

[Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>]

From: Yang Yingliang <yangyingliang@xxxxxxxxxx>

commit 756344e7cb1afbb87da8705c20384dddd0dea233 upstream.

Add missing free_irq() 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 |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/soc/sifive/sifive_l2_cache.c
+++ b/drivers/soc/sifive/sifive_l2_cache.c
@@ -221,7 +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]);
-			goto err_unmap;
+			goto err_free_irq;
 		}
 	}
 
@@ -235,6 +235,9 @@ static int __init sifive_l2_init(void)
 #endif
 	return 0;
 
+err_free_irq:
+	while (--i >= 0)
+		free_irq(g_irq[i], NULL);
 err_unmap:
 	iounmap(l2_base);
 	return rc;