linux-kernel - [PATCH] power: reset: xgene-reboot: Unmap region obtained by of

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Date:   Wed, 14 Sep 2016 16:25:39 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     sre@...nel.org, dbaryshkov@...il.com, dwmw2@...radead.org
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Arvind Yadav <arvind.yadav.cs@...il.com>
Subject: [PATCH] power: reset: xgene-reboot: Unmap region obtained by of_iomap

From: Arvind Yadav <arvind.yadav.cs@...il.com>

Free memory mapping, if probe is not successful.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/power/reset/xgene-reboot.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/power/reset/xgene-reboot.c b/drivers/power/reset/xgene-reboot.c
index f07e93c..73c3d93 100644
--- a/drivers/power/reset/xgene-reboot.c
+++ b/drivers/power/reset/xgene-reboot.c
@@ -81,8 +81,10 @@ static int xgene_reboot_probe(struct platform_device *pdev)
 	ctx->restart_handler.notifier_call = xgene_restart_handler;
 	ctx->restart_handler.priority = 128;
 	err = register_restart_handler(&ctx->restart_handler);
-	if (err)
+	if (err) {
+		iounmap(ctx->csr);
 		dev_err(dev, "cannot register restart handler (err=%d)\n", err);
+	}
 
 	return err;
 }
-- 
1.7.9.5