46 lines
1.5 KiB
Diff
46 lines
1.5 KiB
Diff
From patchwork Tue Jul 18 10:17:26 2017
|
|
Content-Type: text/plain; charset="utf-8"
|
|
MIME-Version: 1.0
|
|
Content-Transfer-Encoding: 7bit
|
|
Subject: [5/9] MIPS: AR7: allow NULL clock for clk_get_rate
|
|
X-Patchwork-Submitter: Jonas Gorski <jonas.gorski@gmail.com>
|
|
X-Patchwork-Id: 16775
|
|
Message-Id: <20170718101730.2541-6-jonas.gorski@gmail.com>
|
|
To: unlisted-recipients:; (no To-header on input)
|
|
Cc: Ralf Baechle <ralf@linux-mips.org>,
|
|
Paul Gortmaker <paul.gortmaker@windriver.com>,
|
|
James Hogan <james.hogan@imgtec.com>,
|
|
linux-mips@linux-mips.org, linux-kernel@vger.kernel.org
|
|
Date: Tue, 18 Jul 2017 12:17:26 +0200
|
|
From: Jonas Gorski <jonas.gorski@gmail.com>
|
|
List-Id: linux-mips <linux-mips.eddie.linux-mips.org>
|
|
|
|
Make the behaviour of clk_get_rate consistent with common clk's
|
|
clk_get_rate by accepting NULL clocks as parameter. Some device
|
|
drivers rely on this, and will cause an OOPS otherwise.
|
|
|
|
Fixes: 780019ddf02f ("MIPS: AR7: Implement clock API")
|
|
Cc: Ralf Baechle <ralf@linux-mips.org>
|
|
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
|
|
Cc: James Hogan <james.hogan@imgtec.com>
|
|
Cc: linux-mips@linux-mips.org
|
|
Cc: linux-kernel@vger.kernel.org
|
|
Reported-by: Mathias Kresin <dev@kresin.me>
|
|
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
|
|
---
|
|
arch/mips/ar7/clock.c | 3 +++
|
|
1 file changed, 3 insertions(+)
|
|
|
|
--- a/arch/mips/ar7/clock.c
|
|
+++ b/arch/mips/ar7/clock.c
|
|
@@ -430,6 +430,9 @@ EXPORT_SYMBOL(clk_disable);
|
|
|
|
unsigned long clk_get_rate(struct clk *clk)
|
|
{
|
|
+ if (!clk)
|
|
+ return 0;
|
|
+
|
|
return clk->rate;
|
|
}
|
|
EXPORT_SYMBOL(clk_get_rate);
|