summaryrefslogtreecommitdiff
path: root/drivers/cpufreq/cpufreq-cpu0.c
diff options
context:
space:
mode:
authorPaul Walmsley <pwalmsley@nvidia.com>2013-11-26 06:01:18 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-12-07 02:19:19 +0400
commit2209b0c964c7c402b07d0df6fcfbecf8ff53db30 (patch)
tree5af8570bb1383f41ce2f5018280e3f9b9dfdf64f /drivers/cpufreq/cpufreq-cpu0.c
parent374b105797c3d4f29c685f3be535c35f5689b30e (diff)
downloadlinux-2209b0c964c7c402b07d0df6fcfbecf8ff53db30.tar.xz
cpufreq: cpufreq-cpu0: clk_round_rate() can return a zero upon error
Treat both negative and zero return values from clk_round_rate() as errors. This is needed since subsequent patches will convert clk_round_rate()'s return value to be an unsigned type, rather than a signed type, since some clock sources can generate rates higher than (2^31)-1 Hz. Eventually, when calling clk_round_rate(), only a return value of zero will be considered a error. All other values will be considered valid rates. The comparison against values less than 0 is kept to preserve the correct behavior in the meantime. Signed-off-by: Paul Walmsley <paul@pwsan.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/cpufreq-cpu0.c')
-rw-r--r--drivers/cpufreq/cpufreq-cpu0.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index d4585ce2346c..0faf756f6197 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -44,7 +44,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int index)
int ret;
freq_Hz = clk_round_rate(cpu_clk, freq_table[index].frequency * 1000);
- if (freq_Hz < 0)
+ if (freq_Hz <= 0)
freq_Hz = freq_table[index].frequency * 1000;
freq_exact = freq_Hz;