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From: Jerome Brunet <jbrunet@baylibre.com>
To: Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@codeaurora.org>,
	linux-clk@vger.kernel.org
Cc: Jerome Brunet <jbrunet@baylibre.com>,
	Kevin Hilman <khilman@baylibre.com>,
	linux-amlogic@lists.infradead.org,
	Russell King <linux@armlinux.org.uk>,
	Linus Walleij <linus.walleij@linaro.org>,
	Boris Brezillon <boris.brezillon@free-electrons.com>
Subject: [PATCH v3 09/10] clk: fix incorrect usage of ENOSYS
Date: Mon, 12 Jun 2017 21:44:37 +0200	[thread overview]
Message-ID: <20170612194438.12298-10-jbrunet@baylibre.com> (raw)
In-Reply-To: <20170612194438.12298-1-jbrunet@baylibre.com>

ENOSYS is special and should only be used for incorrect syscall number.
It does not seem to be the case here.

Reported by checkpatch.pl while working on clock protection.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
 drivers/clk/clk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 8d57e130c4e0..5d545954c48f 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -2032,7 +2032,7 @@ static int clk_core_set_parent_nolock(struct clk_core *core,
 
 	/* verify ops for for multi-parent clks */
 	if ((core->num_parents > 1) && (!core->ops->set_parent))
-		return -ENOSYS;
+		return -EPERM;
 
 	/* check that we are allowed to re-parent if the clock is in use */
 	if ((core->flags & CLK_SET_PARENT_GATE) && core->prepare_count)
-- 
2.9.4

WARNING: multiple messages have this Message-ID (diff)
From: jbrunet@baylibre.com (Jerome Brunet)
To: linus-amlogic@lists.infradead.org
Subject: [PATCH v3 09/10] clk: fix incorrect usage of ENOSYS
Date: Mon, 12 Jun 2017 21:44:37 +0200	[thread overview]
Message-ID: <20170612194438.12298-10-jbrunet@baylibre.com> (raw)
In-Reply-To: <20170612194438.12298-1-jbrunet@baylibre.com>

ENOSYS is special and should only be used for incorrect syscall number.
It does not seem to be the case here.

Reported by checkpatch.pl while working on clock protection.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
 drivers/clk/clk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 8d57e130c4e0..5d545954c48f 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -2032,7 +2032,7 @@ static int clk_core_set_parent_nolock(struct clk_core *core,
 
 	/* verify ops for for multi-parent clks */
 	if ((core->num_parents > 1) && (!core->ops->set_parent))
-		return -ENOSYS;
+		return -EPERM;
 
 	/* check that we are allowed to re-parent if the clock is in use */
 	if ((core->flags & CLK_SET_PARENT_GATE) && core->prepare_count)
-- 
2.9.4

  parent reply	other threads:[~2017-06-12 19:44 UTC|newest]

Thread overview: 102+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-12 19:44 [PATCH v3 00/10] clk: implement clock rate protection mechanism Jerome Brunet
2017-06-12 19:44 ` Jerome Brunet
2017-06-12 19:44 ` [PATCH v3 01/10] clk: take the prepare lock out of clk_core_set_parent Jerome Brunet
2017-06-12 19:44   ` Jerome Brunet
2017-07-12  1:21   ` Stephen Boyd
2017-07-12  1:21     ` Stephen Boyd
2017-06-12 19:44 ` [PATCH v3 02/10] clk: add clk_core_set_phase_nolock function Jerome Brunet
2017-06-12 19:44   ` Jerome Brunet
2017-07-12  1:22   ` Stephen Boyd
2017-07-12  1:22     ` Stephen Boyd
2017-06-12 19:44 ` [PATCH v3 03/10] clk: rework calls to round and determine rate callbacks Jerome Brunet
2017-06-12 19:44   ` Jerome Brunet
2017-07-12  1:49   ` Stephen Boyd
2017-07-12  1:49     ` Stephen Boyd
2017-06-12 19:44 ` [PATCH v3 04/10] clk: use round rate to bail out early in set_rate Jerome Brunet
2017-06-12 19:44   ` Jerome Brunet
2017-07-12  2:00   ` Stephen Boyd
2017-07-12  2:00     ` Stephen Boyd
2017-07-26 17:13     ` Jerome Brunet
2017-07-26 17:13       ` Jerome Brunet
2017-08-04  0:32       ` Stephen Boyd
2017-08-04  0:32         ` Stephen Boyd
2017-06-12 19:44 ` [PATCH v3 05/10] clk: add support for clock protection Jerome Brunet
2017-06-12 19:44   ` Jerome Brunet
2017-07-26  0:12   ` Stephen Boyd
2017-07-26  0:12     ` Stephen Boyd
2017-07-26 17:18     ` Jerome Brunet
2017-07-26 17:18       ` Jerome Brunet
2017-08-04  0:18       ` Stephen Boyd
2017-08-04  0:18         ` Stephen Boyd
2017-08-08 22:37         ` Michael Turquette
2017-08-08 22:37           ` Michael Turquette
2017-08-09  2:19           ` Stephen Boyd
2017-08-09  2:19             ` Stephen Boyd
2017-08-09 11:45             ` Russell King - ARM Linux
2017-08-09 11:45               ` Russell King - ARM Linux
2017-08-09 13:34               ` Jerome Brunet
2017-08-09 13:34                 ` Jerome Brunet
2017-08-09 13:40                 ` Russell King - ARM Linux
2017-08-09 13:40                   ` Russell King - ARM Linux
2017-08-09 13:45                   ` Jerome Brunet
2017-08-09 13:45                     ` Jerome Brunet
2017-08-10 16:48                   ` Michael Turquette
2017-08-10 16:48                     ` Michael Turquette
2017-08-10 16:46               ` Michael Turquette
2017-08-10 16:46                 ` Michael Turquette
2017-08-09 13:07             ` Jerome Brunet
2017-08-09 13:07               ` Jerome Brunet
2017-08-09 12:18           ` Jerome Brunet
2017-08-09 12:18             ` Jerome Brunet
2017-08-10 16:54             ` Michael Turquette
2017-08-10 16:54               ` Michael Turquette
2017-06-12 19:44 ` [PATCH v3 06/10] clk: add clk_set_rate_protect Jerome Brunet
2017-06-12 19:44   ` Jerome Brunet
2017-07-26  0:59   ` Stephen Boyd
2017-07-26  0:59     ` Stephen Boyd
2017-06-12 19:44 ` [PATCH v3 07/10] clk: rollback set_rate_range changes on failure Jerome Brunet
2017-06-12 19:44   ` Jerome Brunet
2017-07-12  2:02   ` Stephen Boyd
2017-07-12  2:02     ` Stephen Boyd
2017-07-26 17:22     ` Jerome Brunet
2017-07-26 17:22       ` Jerome Brunet
2017-06-12 19:44 ` [PATCH v3 08/10] clk: cosmetic changes to clk_summary debugfs entry Jerome Brunet
2017-06-12 19:44   ` Jerome Brunet
2017-07-12  2:02   ` Stephen Boyd
2017-07-12  2:02     ` Stephen Boyd
2017-06-12 19:44 ` Jerome Brunet [this message]
2017-06-12 19:44   ` [PATCH v3 09/10] clk: fix incorrect usage of ENOSYS Jerome Brunet
2017-07-12  2:03   ` Stephen Boyd
2017-07-12  2:03     ` Stephen Boyd
2017-06-12 19:44 ` [PATCH v3 10/10] clk: fix CLK_SET_RATE_GATE with clock rate protection Jerome Brunet
2017-06-12 19:44   ` Jerome Brunet
2017-06-20  9:07 ` [PATCH v3 00/10] clk: implement clock rate protection mechanism Linus Walleij
2017-06-20  9:07   ` Linus Walleij
2017-06-20 10:50   ` Jerome Brunet
2017-06-20 10:50     ` Jerome Brunet
2017-06-20 11:54     ` Linus Walleij
2017-06-20 11:54       ` Linus Walleij
2017-06-20 12:32       ` Jerome Brunet
2017-06-20 12:32         ` Jerome Brunet
2017-06-20 12:47         ` Boris Brezillon
2017-06-20 12:47           ` Boris Brezillon
2017-06-22  7:07           ` Quentin Schulz
2017-06-22  7:07             ` Quentin Schulz
2017-06-22 10:09             ` Jerome Brunet
2017-06-22 10:09               ` Jerome Brunet
2017-06-20 15:29         ` Linus Walleij
2017-06-20 15:29           ` Linus Walleij
2017-06-21 13:15         ` Jerome Brunet
2017-06-21 13:15           ` Jerome Brunet
2017-07-12  1:16           ` Stephen Boyd
2017-07-12  1:16             ` Stephen Boyd
2017-07-26 17:05             ` Jerome Brunet
2017-07-26 17:05               ` Jerome Brunet
2017-07-27 22:44               ` Stephen Boyd
2017-07-27 22:44                 ` Stephen Boyd
2017-08-08 22:40                 ` Michael Turquette
2017-08-08 22:40                   ` Michael Turquette
2017-08-09 12:14                   ` Jerome Brunet
2017-08-09 12:14                     ` Jerome Brunet
2017-07-11 21:04 ` Jerome Brunet
2017-07-11 21:04   ` Jerome Brunet

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