4.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
commit 0373ca74831b0f93cd4cdbf7ad3aec3c33a479a5 upstream.
commit a307a1e6bc0d "cpufreq: s3c: use cpufreq_generic_init()"
accidentally broke cpufreq on s3c2410 and s3c2412.
These two platforms don't have a CPU frequency table and used to skip
calling cpufreq_table_validate_and_show() for them. But with the
above commit, we started calling it unconditionally and that will
eventually fail as the frequency table pointer is NULL.
Fix this by calling cpufreq_table_validate_and_show() conditionally
again.
Fixes: a307a1e6bc0d "cpufreq: s3c: use cpufreq_generic_init()"
Cc: 3.13+ <stable@xxxxxxxxxxxxxxx> # v3.13+
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/cpufreq/s3c24xx-cpufreq.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--- a/drivers/cpufreq/s3c24xx-cpufreq.c
+++ b/drivers/cpufreq/s3c24xx-cpufreq.c
@@ -351,7 +351,13 @@ struct clk *s3c_cpufreq_clk_get(struct d
static int s3c_cpufreq_init(struct cpufreq_policy *policy)
{
policy->clk = clk_arm;
- return cpufreq_generic_init(policy, ftab, cpu_cur.info->latency);
+
+ policy->cpuinfo.transition_latency = cpu_cur.info->latency;
+
+ if (ftab)
+ return cpufreq_table_validate_and_show(policy, ftab);
+
+ return 0;
}
static int __init s3c_cpufreq_initclks(void)