From: Colin Ian King <colin.k...@canonical.com>
The return from of_count_phandle_with_args can be negative, so we
should avoid kcalloc of a negative count of genpd_power_stat structs
by sanity checking if count is zero or less.
Signed-off-by: Colin Ian King <colin.k...@canonical.com>
---
drivers/base/power/domain.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index aac656a..661737c 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -2113,7 +2113,7 @@ int of_genpd_parse_idle_states(struct device_node *dn,
struct of_phandle_iterator it;
count = of_count_phandle_with_args(dn, "domain-idle-states", NULL);
- if (!count)
+ if (count <= 0)
return -EINVAL;
st = kcalloc(count, sizeof(*st), GFP_KERNEL);
--
2.9.3
