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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2016-09-19 03:04:35 +0900 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2016-10-04 16:13:57 +0200 |
| commit | 00ca0250125934c8e47f58f973ea2f8905cee017 (patch) | |
| tree | 538ce0ec85b09a3e7b8d2003a0d53a66182f7266 | |
| parent | 5f92635462d64f09f4643e7c15c48ea7a1f7d2b7 (diff) | |
| download | blackbird-op-linux-00ca0250125934c8e47f58f973ea2f8905cee017.tar.gz blackbird-op-linux-00ca0250125934c8e47f58f973ea2f8905cee017.zip | |
MIPS: BCM63xx: Let clk_disable() return immediately if clk is NULL
In many of clk_disable() implementations, it is a no-op for a NULL
pointer input, but this is one of the exceptions.
Making it treewide consistent will allow clock consumers to call
clk_disable() without NULL pointer check.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: linux-arm-kernel@lists.infradead.org
Patchwork: https://patchwork.linux-mips.org/patch/14264/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| -rw-r--r-- | arch/mips/bcm63xx/clk.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/mips/bcm63xx/clk.c b/arch/mips/bcm63xx/clk.c index 637565284732..b49fc9cb9cad 100644 --- a/arch/mips/bcm63xx/clk.c +++ b/arch/mips/bcm63xx/clk.c @@ -326,6 +326,9 @@ EXPORT_SYMBOL(clk_enable); void clk_disable(struct clk *clk) { + if (!clk) + return; + mutex_lock(&clocks_mutex); clk_disable_unlocked(clk); mutex_unlock(&clocks_mutex); |
