[PATCH for 4.9 58/59] mips: ath79: clock:- Unmap region obtained by of_iomap

[Levin, Alexander (Sasha Levin)]

From: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx>

[ Upstream commit b3d91db3f71d5f70ea60d900425a3f96aeb3d065 ]

Free memory mapping, if ath79_clocks_init_dt_ng is not successful.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx>
Fixes: 3bdf1071ba7d ("MIPS: ath79: update devicetree clock support for AR9132")
Cc: antonynpavlov@xxxxxxxxx
Cc: albeu@xxxxxxx
Cc: hackpascal@xxxxxxxxx
Cc: sboyd@xxxxxxxxxxxxxx
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Patchwork: https://patchwork.linux-mips.org/patch/14915/
Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
---
 arch/mips/ath79/clock.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/mips/ath79/clock.c b/arch/mips/ath79/clock.c
index cc3a1e33a600..7e2bb12b64ea 100644
--- a/arch/mips/ath79/clock.c
+++ b/arch/mips/ath79/clock.c
@@ -508,16 +508,19 @@ static void __init ath79_clocks_init_dt_ng(struct device_node *np)
 		ar9330_clk_init(ref_clk, pll_base);
 	else {
 		pr_err("%s: could not find any appropriate clk_init()\n", dnfn);
-		goto err_clk;
+		goto err_iounmap;
 	}
 
 	if (of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data)) {
 		pr_err("%s: could not register clk provider\n", dnfn);
-		goto err_clk;
+		goto err_iounmap;
 	}
 
 	return;
 
+err_iounmap:
+	iounmap(pll_base);
+
 err_clk:
 	clk_put(ref_clk);
 
-- 
2.11.0