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Message-ID: <5fac1423-00e9-e5b2-161d-5ddc2f47bfc9@wanadoo.fr>
Date: Mon, 6 Feb 2017 21:24:35 +0100
From: Marion & Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: antonynpavlov@...il.com, antonynpavlov@...il.com, albeu@...e.fr,
hackpascal@...il.com, Stephen Boyd <sboyd@...eaurora.org>
Cc: linux-mips@...ux-mips.org,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Kernel Janitors <kernel-janitors@...r.kernel.org>
Subject: [RFC] mips: ath79: clock:- Unmap region obtained by of_iomap
Hi,
I had a patch similar to:
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/arch/mips/ath79/clock.c?id=b3d91db3f71d5f70ea60d900425a3f96aeb3d065
in my own tree.
However, mine was slightly different and was also freeing the memory
mapping in the normal case, when 'pll_base' seems to be no more useful.
Best regards,
CJ
=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
diff --git a/arch/mips/ath79/clock.c b/arch/mips/ath79/clock.c
index c1102cffe37d..b5d81acb2d7a 100644
--- a/arch/mips/ath79/clock.c
+++ b/arch/mips/ath79/clock.c
@@ -508,9 +508,11 @@ 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_unmap;
}
+ iounmap(pll_base);
+
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;
@@ -518,6 +520,8 @@ static void __init ath79_clocks_init_dt_ng(struct
device_node *np)
return;
+err_unmap:
+ iounmap(pll_base);
err_clk:
clk_put(ref_clk);
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