Messages in this thread Patch in this message | | | From | Ben Hutchings <> | Date | Wed, 22 Nov 2017 02:11:06 +0000 | Subject | [PATCH 3.2 38/61] MIPS: AR7: allow NULL clock for clk_get_rate |
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3.2.96-rc1 review patch. If anyone has any objections, please let me know.
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From: Jonas Gorski <jonas.gorski@gmail.com>
commit 585e0e9d02a690c29932b2fc0789835c7b91d448 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: 780019ddf02f ("MIPS: AR7: Implement clock API") Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Reported-by: Mathias Kresin <dev@kresin.me> 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 Patchwork: https://patchwork.linux-mips.org/patch/16775/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- 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);
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