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authorHerbert Xu <herbert@gondor.apana.org.au>2015-06-19 17:07:07 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2015-06-19 17:07:07 +0300
commitc0b59fafe31bf91f589736be304d739b13952fdd (patch)
tree0088a41c6b68132739294643be06734e3af67677 /drivers/clk/clk-fractional-divider.c
parent28bceeaaf81140d69647acd0eb7dc9312f27844a (diff)
parentbfa1ce5f38938cc9e6c7f2d1011f88eba2b9e2b2 (diff)
downloadlinux-c0b59fafe31bf91f589736be304d739b13952fdd.tar.xz
Merge branch 'mvebu/drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Merge the mvebu/drivers branch of the arm-soc tree which contains just a single patch bfa1ce5f38938cc9e6c7f2d1011f88eba2b9e2b2 ("bus: mvebu-mbus: add mv_mbus_dram_info_nooverlap()") that happens to be a prerequisite of the new marvell/cesa crypto driver.
Diffstat (limited to 'drivers/clk/clk-fractional-divider.c')
-rw-r--r--drivers/clk/clk-fractional-divider.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/clk/clk-fractional-divider.c b/drivers/clk/clk-fractional-divider.c
index 82a59d0086cc..6aa72d9d79ba 100644
--- a/drivers/clk/clk-fractional-divider.c
+++ b/drivers/clk/clk-fractional-divider.c
@@ -36,6 +36,9 @@ static unsigned long clk_fd_recalc_rate(struct clk_hw *hw,
m = (val & fd->mmask) >> fd->mshift;
n = (val & fd->nmask) >> fd->nshift;
+ if (!n || !m)
+ return parent_rate;
+
ret = (u64)parent_rate * m;
do_div(ret, n);