From 00ca0250125934c8e47f58f973ea2f8905cee017 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 19 Sep 2016 03:04:35 +0900 Subject: [PATCH] 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 Acked-by: Florian Fainelli Cc: Stephen Boyd Cc: Michael Turquette 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 --- arch/mips/bcm63xx/clk.c | 3 +++ 1 file changed, 3 insertions(+) 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); -- 2.20.1