From: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> Subject: blackfin: bf609: 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. Link: http://lkml.kernel.org/r/1490692624-11931-4-git-send-email-yamada.masahiro@xxxxxxxxxxxxx Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> Cc: Stephen Boyd <sboyd@xxxxxxxxxxxxxx> Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Cc: Michael Turquette <mturquette@xxxxxxxxxxxx> Cc: Steven Miao <realmz6@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/blackfin/mach-bf609/clock.c | 3 +++ 1 file changed, 3 insertions(+) diff -puN arch/blackfin/mach-bf609/clock.c~blackfin-bf609-let-clk_disable-return-immediately-if-clk-is-null arch/blackfin/mach-bf609/clock.c --- a/arch/blackfin/mach-bf609/clock.c~blackfin-bf609-let-clk_disable-return-immediately-if-clk-is-null +++ a/arch/blackfin/mach-bf609/clock.c @@ -97,6 +97,9 @@ EXPORT_SYMBOL(clk_enable); void clk_disable(struct clk *clk) { + if (!clk) + return; + if (clk->ops && clk->ops->disable) clk->ops->disable(clk); } _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
