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authorPaul Mundt <lethal@linux-sh.org>2010-11-01 15:30:31 -0400
committerPaul Mundt <lethal@linux-sh.org>2010-11-01 15:30:31 -0400
commit5aefa34fada9d17a00635516688de34702451708 (patch)
tree1efb33a6f02df2c70f8cb8aa3c5cca52c04c9aa2 /drivers/sh/clk
parent3985c7ce85039adacdf882904ca096f091d39346 (diff)
downloadlinux-5aefa34fada9d17a00635516688de34702451708.tar.bz2
sh: clkfwk: Fix up rate rounding error handling.
According to the linux/clk.h definition we should be handing back an errno value or a valid rate. This fixes up the case where 0 can be returned for invalid frequencies or cases where rounding has no selectable candidate. Reported-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/sh/clk')
-rw-r--r--drivers/sh/clk/core.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/sh/clk/core.c b/drivers/sh/clk/core.c
index fd0d1b98901c..861144360d89 100644
--- a/drivers/sh/clk/core.c
+++ b/drivers/sh/clk/core.c
@@ -90,8 +90,8 @@ struct clk_rate_round_data {
static long clk_rate_round_helper(struct clk_rate_round_data *rounder)
{
unsigned long rate_error, rate_error_prev = ~0UL;
- unsigned long rate_best_fit = rounder->rate;
unsigned long highest, lowest, freq;
+ long rate_best_fit = -ENOENT;
int i;
highest = 0;
@@ -146,7 +146,7 @@ long clk_rate_table_round(struct clk *clk,
};
if (clk->nr_freqs < 1)
- return 0;
+ return -ENOSYS;
return clk_rate_round_helper(&table_round);
}