blackfin-cpufreq: Change return type of cpu_set_cclk() to that of clk_set_rate()

Author: Markus Elfring <elfring@users.sourceforge.net>

The return type "unsigned long" was used by the cpu_set_cclk() function
while the type "int" is provided by the clk_set_rate() function.
Let us make this usage consistent.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring 
Acked-by: Viresh Kumar 
Signed-off-by: Rafael J. Wysocki 
---
 drivers/cpufreq/blackfin-cpufreq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 
diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c
index a9f8e5b..2a6f3ac 100644
--- a/drivers/cpufreq/blackfin-cpufreq.c
+++ b/drivers/cpufreq/blackfin-cpufreq.c
@@ -112,7 +112,7 @@ static unsigned int bfin_getfreq_khz(unsigned int cpu)
 }
 
 #ifdef CONFIG_BF60x
-unsigned long cpu_set_cclk(int cpu, unsigned long new)
+int cpu_set_cclk(int cpu, unsigned long new)
 {
 	struct clk *clk;
 	int ret;