| From | Ben Hutchings <> | Date | Wed, 22 Nov 2017 01:58:13 +0000 | Subject | [PATCH 3.16 054/133] m68k: allow NULL clock for clk_get_rate |
| |
3.16.51-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Jonas Gorski <jonas.gorski@gmail.com>
commit 94b282267c2f3af725b154c91275ed374c1f11de upstream.
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: facdf0ed4f59 ("m68knommu: introduce basic clk infrastructure") Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: linux-m68k@lists.linux-m68k.org Cc: linux-kernel@vger.kernel.org Reported-by: Mathias Kresin <dev@kresin.me> Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Signed-off-by: Greg Ungerer <gerg@linux-m68k.org> [bwh: Backported to 3.16: adjust filename] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- arch/m68k/platform/coldfire/clk.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/arch/m68k/platform/coldfire/clk.c +++ b/arch/m68k/platform/coldfire/clk.c @@ -117,6 +117,9 @@ EXPORT_SYMBOL(clk_put); unsigned long clk_get_rate(struct clk *clk) { + if (!clk) + return 0; + return clk->rate; } EXPORT_SYMBOL(clk_get_rate);
|