diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2010-10-18 03:50:29 +0000 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-10-18 20:33:10 +0900 |
| commit | c2590f4a8ddf461d33ac2085d966432b2a6a09f2 (patch) | |
| tree | c0302f29a328b6200517c933db2cb4a94e96be58 /drivers/sh | |
| parent | 56ea510962ec690ede2be2064de72e51a33011d9 (diff) | |
| download | lwn-c2590f4a8ddf461d33ac2085d966432b2a6a09f2.tar.gz lwn-c2590f4a8ddf461d33ac2085d966432b2a6a09f2.zip | |
sh: clkfwk: modify for_each_frequency end condition
The end condition of for_each_frequency should care about
both clk_rate_table_round and clk_rate_div_range_round,
and using "correct max size" is a natural idea in later function.
To avoid data over flow, this patch didn't modify
clk_rate_div_range_round side as .max = div_max + 1.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/sh')
| -rw-r--r-- | drivers/sh/clk.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/sh/clk.c b/drivers/sh/clk.c index c76f972db69a..dae64ee9ecc5 100644 --- a/drivers/sh/clk.c +++ b/drivers/sh/clk.c @@ -82,7 +82,7 @@ struct clk_rate_round_data { #define for_each_frequency(pos, r, freq) \ for (pos = r->min, freq = r->func(pos, r); \ - pos < r->max; pos++, freq = r->func(pos, r)) \ + pos <= r->max; pos++, freq = r->func(pos, r)) \ if (unlikely(freq == 0)) \ ; \ else @@ -139,12 +139,15 @@ long clk_rate_table_round(struct clk *clk, { struct clk_rate_round_data table_round = { .min = 0, - .max = clk->nr_freqs, + .max = clk->nr_freqs - 1, .func = clk_rate_table_iter, .arg = freq_table, .rate = rate, }; + if (clk->nr_freqs < 1) + return 0; + return clk_rate_round_helper(&table_round); } |