From: Luca Coelho <luciano.coelho@xxxxxxxxx>
Sparse started warning on this function because we can potentially
return an uninitialized value. The reason is that if the caller
passes a min_bw value that is higher then the last value in bws[], we
will not go into the loop and reg_rule will remain initialized. This
cannot happen because the only caller of this function uses either 1
or 20 in min_bw, but the function will be more robust if we
pre-initialize the value.
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
net/wireless/reg.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 452b698f42be..21536c48deec 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1629,7 +1629,7 @@ __freq_reg_info(struct wiphy *wiphy, u32 center_freq, u32 min_bw)
{
const struct ieee80211_regdomain *regd = reg_get_regdomain(wiphy);
static const u32 bws[] = {0, 1, 2, 4, 5, 8, 10, 16, 20};
- const struct ieee80211_reg_rule *reg_rule;
+ const struct ieee80211_reg_rule *reg_rule = ERR_PTR(-ERANGE);
int i = ARRAY_SIZE(bws) - 1;
u32 bw;
--
2.30.0
