From: Rajendra Nayak <rna...@ti.com>
Most users of clk_get_rate() actually assume a non zero
return value as a valid rate returned. Returing -EINVAL
might confuse such users, so make it instead return zero
on error.
Besides the return value of clk_get_rate seems to be
'unsigned long'.
Signed-off-by: Rajendra nayak <rna...@ti.com>
Signed-off-by: Mike Turquette <mturque...@linaro.org>
Cc: Arnd Bergman <arnd.bergm...@linaro.org>
Cc: Olof Johansson <o...@lixom.net>
Cc: Russell King <li...@arm.linux.org.uk>
Cc: Sascha Hauer <s.ha...@pengutronix.de>
Cc: Shawn Guo <shawn....@freescale.com>
Cc: Richard Zhao <richard.z...@linaro.org>
Cc: Saravana Kannan <skan...@codeaurora.org>
Cc: Mark Brown <broo...@opensource.wolfsonmicro.com>
Cc: Andrew Lunn <and...@lunn.ch>
Cc: Viresh Kumar <viresh.ku...@st.com>
---
drivers/clk/clk.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 9924aec..a24b121 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -285,7 +285,7 @@ unsigned long __clk_get_rate(struct clk *clk)
unsigned long ret;
if (!clk) {
- ret = -EINVAL;
+ ret = 0;
goto out;
}
@@ -295,7 +295,7 @@ unsigned long __clk_get_rate(struct clk *clk)
goto out;
if (!clk->parent)
- ret = -ENODEV;
+ ret = 0;
out:
return ret;
@@ -560,7 +560,7 @@ EXPORT_SYMBOL_GPL(clk_enable);
* @clk: the clk whose rate is being returned
*
* Simply returns the cached rate of the clk. Does not query the hardware. If
- * clk is NULL then returns -EINVAL.
+ * clk is NULL then returns 0.
*/
unsigned long clk_get_rate(struct clk *clk)
{
--
1.7.5.4
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