From: <Claudiu.Beznea@microchip.com>
To: <mturquette@baylibre.com>, <sboyd@kernel.org>,
<Nicolas.Ferre@microchip.com>, <alexandre.belloni@bootlin.com>
Cc: claudiu.beznea@gmail.com, Claudiu.Beznea@microchip.com,
linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 6/7] clk: at91: sckc: improve error path for sama5d4 sck registration
Date: Thu, 13 Jun 2019 15:37:25 +0000 [thread overview]
Message-ID: <1560440205-4604-7-git-send-email-claudiu.beznea@microchip.com> (raw)
In-Reply-To: <1560440205-4604-1-git-send-email-claudiu.beznea@microchip.com>
From: Claudiu Beznea <claudiu.beznea@microchip.com>
Improve error path for sama5d4 sck registration.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
drivers/clk/at91/sckc.c | 43 ++++++++++++++++++++++++++++---------------
1 file changed, 28 insertions(+), 15 deletions(-)
diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c
index c61b6c9ddb94..f7ad3e9414dc 100644
--- a/drivers/clk/at91/sckc.c
+++ b/drivers/clk/at91/sckc.c
@@ -568,7 +568,7 @@ static const struct clk_slow_bits at91sama5d4_bits = {
static void __init of_sama5d4_sckc_setup(struct device_node *np)
{
void __iomem *regbase = of_iomap(np, 0);
- struct clk_hw *hw;
+ struct clk_hw *slow_rc, *slowck;
struct clk_sama5d4_slow_osc *osc;
struct clk_init_data init;
const char *xtal_name;
@@ -578,17 +578,18 @@ static void __init of_sama5d4_sckc_setup(struct device_node *np)
if (!regbase)
return;
- hw = clk_hw_register_fixed_rate_with_accuracy(NULL, parent_names[0],
- NULL, 0, 32768,
- 250000000);
- if (IS_ERR(hw))
+ slow_rc = clk_hw_register_fixed_rate_with_accuracy(NULL,
+ parent_names[0],
+ NULL, 0, 32768,
+ 250000000);
+ if (IS_ERR(slow_rc))
return;
xtal_name = of_clk_get_parent_name(np, 0);
osc = kzalloc(sizeof(*osc), GFP_KERNEL);
if (!osc)
- return;
+ goto unregister_slow_rc;
init.name = parent_names[1];
init.ops = &sama5d4_slow_osc_ops;
@@ -602,17 +603,29 @@ static void __init of_sama5d4_sckc_setup(struct device_node *np)
osc->bits = &at91sama5d4_bits;
ret = clk_hw_register(NULL, &osc->hw);
- if (ret) {
- kfree(osc);
- return;
- }
+ if (ret)
+ goto free_slow_osc_data;
- hw = at91_clk_register_sam9x5_slow(regbase, "slowck", parent_names, 2,
- &at91sama5d4_bits);
- if (IS_ERR(hw))
- return;
+ slowck = at91_clk_register_sam9x5_slow(regbase, "slowck",
+ parent_names, 2,
+ &at91sama5d4_bits);
+ if (IS_ERR(slowck))
+ goto unregister_slow_osc;
- of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+ ret = of_clk_add_hw_provider(np, of_clk_hw_simple_get, slowck);
+ if (WARN_ON(ret))
+ goto unregister_slowck;
+
+ return;
+
+unregister_slowck:
+ at91_clk_unregister_sam9x5_slow(slowck);
+unregister_slow_osc:
+ clk_hw_unregister(&osc->hw);
+free_slow_osc_data:
+ kfree(osc);
+unregister_slow_rc:
+ clk_hw_unregister(slow_rc);
}
CLK_OF_DECLARE(sama5d4_clk_sckc, "atmel,sama5d4-sckc",
of_sama5d4_sckc_setup);
--
2.7.4
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-06-13 15:39 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-13 15:37 [PATCH 0/7] clk: at91: sckc: improve error path Claudiu.Beznea
2019-06-13 15:37 ` [PATCH 1/7] clk: at91: sckc: add support to free slow oscillator Claudiu.Beznea
2019-06-13 15:37 ` [PATCH 2/7] clk: at91: sckc: add support to free slow rc oscillator Claudiu.Beznea
2019-06-13 15:37 ` [PATCH 3/7] clk: at91: sckc: add support to free slow clock osclillator Claudiu.Beznea
2019-06-13 15:37 ` [PATCH 4/7] clk: at91: sckc: improve error path for sam9x5 sck register Claudiu.Beznea
2019-06-13 15:37 ` [PATCH 5/7] clk: at91: sckc: remove unnecessary line Claudiu.Beznea
2019-06-13 15:37 ` Claudiu.Beznea [this message]
2019-06-13 15:37 ` [PATCH 7/7] clk: at91: sckc: use dedicated functions to unregister clock Claudiu.Beznea
2019-06-18 9:55 ` [PATCH 0/7] clk: at91: sckc: improve error path Alexandre Belloni
2019-06-20 10:30 ` Claudiu.Beznea
2019-06-21 9:33 ` Alexandre Belloni
2019-06-26 18:53 ` Stephen Boyd
2019-06-26 19:00 ` Alexandre Belloni
2019-06-27 15:03 ` Stephen Boyd
2019-06-27 15:55 ` Claudiu.Beznea
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1560440205-4604-7-git-send-email-claudiu.beznea@microchip.com \
--to=claudiu.beznea@microchip.com \
--cc=Nicolas.Ferre@microchip.com \
--cc=alexandre.belloni@bootlin.com \
--cc=claudiu.beznea@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-clk@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mturquette@baylibre.com \
--cc=sboyd@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).