linux-kernel - [PATCH 4.14 060/164] soc: mediatek: fix the mistaken pointer accessed when subdomains are added

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Message-Id: <20180422135137.905383183@linuxfoundation.org>
Date:   Sun, 22 Apr 2018 15:52:07 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Weiyi Lu <weiyi.lu@...iatek.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>
Subject: [PATCH 4.14 060/164] soc: mediatek: fix the mistaken pointer accessed when subdomains are added

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sean Wang <sean.wang@...iatek.com>

commit 73ce2ce129783813e1ebc37d2c757fe5e0fab1ef upstream.

Fix the pointer to struct scp_subdomian not being moved forward
when each sub-domain is expected to be iteratively added through
pm_genpd_add_subdomain call.

Cc: stable@...r.kernel.org
Fixes: 53fddb1a66dd ("soc: mediatek: reduce code duplication of scpsys_probe across all SoCs")
Reported-by: Weiyi Lu <weiyi.lu@...iatek.com>
Signed-off-by: Sean Wang <sean.wang@...iatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/soc/mediatek/mtk-scpsys.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/soc/mediatek/mtk-scpsys.c
+++ b/drivers/soc/mediatek/mtk-scpsys.c
@@ -892,7 +892,7 @@ static int scpsys_probe(struct platform_
 
 	pd_data = &scp->pd_data;
 
-	for (i = 0, sd = soc->subdomains ; i < soc->num_subdomains ; i++) {
+	for (i = 0, sd = soc->subdomains; i < soc->num_subdomains; i++, sd++) {
 		ret = pm_genpd_add_subdomain(pd_data->domains[sd->origin],
 					     pd_data->domains[sd->subdomain]);
 		if (ret && IS_ENABLED(CONFIG_PM))