[PATCH] PM / clock_ops: initialize ret to avoid garbage being returned

From: Colin King
Date: Thu Jan 08 2015 - 10:32:11 EST


From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

cppcheck detected an unitialised ret:
[drivers/base/power/clock_ops.c:53]: (error) Uninitialized variable: ret

ret is only assigned if ce->status < PCE_STATUS_ERROR, if this is false
then __pm_clk_enable returns whatever garbage ret picks up from the stack.

Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/base/power/clock_ops.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/base/power/clock_ops.c b/drivers/base/power/clock_ops.c
index d626576..5bd283d 100644
--- a/drivers/base/power/clock_ops.c
+++ b/drivers/base/power/clock_ops.c
@@ -39,7 +39,7 @@ struct pm_clock_entry {
*/
static inline int __pm_clk_enable(struct device *dev, struct pm_clock_entry *ce)
{
- int ret;
+ int ret = 0;

if (ce->status < PCE_STATUS_ERROR) {
ret = clk_enable(ce->clk);
--
1.7.9.5

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