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batman-adv: add sanity check when removing global tts

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After removing the batman-adv module, the hash may be already gone
when tt_global_del_orig() tries to clean the hash. This patch adds
a sanity check to avoid this.

Signed-off-by: Simon Wunderlich <[email protected]>
Tested-by: Alexey Fisher <[email protected]>
Signed-off-by: Marek Lindner <[email protected]>
This commit is contained in:
Simon Wunderlich 2011-10-19 10:28:26 +02:00 • committed by Marek Lindner
commit 6e8014947d
1 changed files with 3 additions and 0 deletions
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3
net/batman-adv/translation-table.c
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@ -698,6 +698,9 @@ void tt_global_del_orig(struct bat_priv *bat_priv,
struct hlist_head *head;
spinlock_t *list_lock; /* protects write access to the hash lists */
if (!hash)
return;
for (i = 0; i < hash->size; i++) {
head = &hash->table[i];
list_lock = &hash->list_locks[i];