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wifi: nl80211: remove redundant null pointer check in coalescing

Message ID 20241003095912.218465-1-d.kandybka@gmail.com
State New
Headers show
Series wifi: nl80211: remove redundant null pointer check in coalescing | expand

Commit Message

Dmitry Kandybka Oct. 3, 2024, 9:59 a.m. UTC
In 'cfg80211_free_coalesce', '&coalesce->rules[i]' is a pointer
to VLA member of 'struct cfg80211_coalesce' and should never be NULL,
so redundant check may be dropped.

I think this is correct, but I haven't tested it seriously.
Compile tested only.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Dmitry Kandybka <d.kandybka@gmail.com>
---
 net/wireless/nl80211.c | 2 --
 1 file changed, 2 deletions(-)
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Patch

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 9ab777e0bd4d..b71fa8beea1f 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -14061,8 +14061,6 @@  void cfg80211_free_coalesce(struct cfg80211_coalesce *coalesce)
 
 	for (i = 0; i < coalesce->n_rules; i++) {
 		rule = &coalesce->rules[i];
-		if (!rule)
-			continue;
 		for (j = 0; j < rule->n_patterns; j++)
 			kfree(rule->patterns[j].mask);
 		kfree(rule->patterns);