From: Paul Walmsley <pwalmsley@nvidia.com>

blackfin: bf60x: clock: return 0 upon error from clk_round_rate()

clk_round_rate() should return 0 upon an error, rather than returning
a negative error code.  This is because clk_round_rate() is being
changed to return an unsigned return type rather than a signed type,
since some clock sources can generate rates higher than (2^31)-1 Hz.

Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com>
Signed-off-by: Steven Miao <realmz6@gmail.com>

diff --git a/arch/blackfin/mach-bf609/clock.c b/arch/blackfin/mach-bf609/clock.c
index dab8849af884a5a2032081eff51005c6daf08151..13644ed25489de4b46285ca3cd8953785310feff 100644 (file)
--- a/arch/blackfin/mach-bf609/clock.c
+++ b/arch/blackfin/mach-bf609/clock.c
@@ -120,6 +120,7 @@ void clk_disable(struct clk *clk)
 }
 EXPORT_SYMBOL(clk_disable);
 
+
 unsigned long clk_get_rate(struct clk *clk)
 {
        unsigned long ret = 0;
@@ -131,7 +132,7 @@ EXPORT_SYMBOL(clk_get_rate);
 
 long clk_round_rate(struct clk *clk, unsigned long rate)
 {
-       long ret = -EIO;
+       long ret = 0;
        if (clk->ops && clk->ops->round_rate)
                ret = clk->ops->round_rate(clk, rate);
        return ret;