opp: core: Fix off by one in dev_pm_opp_get_bw()

The "opp->bandwidth" array has "opp->opp_table->path_count" number of
elements.  It's allocated in _opp_allocate().  So this > needs to be >=
to prevent an out of bounds access.

Fixes: d78653dcd8bf ("opp: core: implement dev_pm_opp_get_bw")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index d4a0030a0228d6282d672e3ffe3aeea27e80822a..09a1432561f63923bc89a33dd397b27021a87d38 100644 (file)
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -121,7 +121,7 @@ unsigned long dev_pm_opp_get_bw(struct dev_pm_opp *opp, bool peak, int index)
                return 0;
        }
 
-       if (index > opp->opp_table->path_count)
+       if (index >= opp->opp_table->path_count)
                return 0;
 
        if (!opp->bandwidth)