[PATCH] C6X: clock: return 0 upon error from clk_round_rate()

[Paul Walmsley]

clk_round_rate() should return 0 now 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@xxxxxxxxxx>
Cc: Mark Salter <msalter@xxxxxxxxxx>
Cc: Aurelien Jacquiot <a-jacquiot@xxxxxx>
---
Applies on v3.13-rc1.  See also:

    http://marc.info/?l=linux-arm-kernel&m=138542591313620&w=2

 arch/c6x/platforms/pll.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/c6x/platforms/pll.c b/arch/c6x/platforms/pll.c
index 3aa898f7ce4d..79d28dda660a 100644
--- a/arch/c6x/platforms/pll.c
+++ b/arch/c6x/platforms/pll.c
@@ -85,7 +85,7 @@ EXPORT_SYMBOL(clk_get_rate);
 long clk_round_rate(struct clk *clk, unsigned long rate)
 {
 	if (clk == NULL || IS_ERR(clk))
-		return -EINVAL;
+		return 0;

 	if (clk->round_rate)
 		return clk->round_rate(clk, rate);
--
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