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[IPV4]: Fix memory leak during fib_info hash expansion. 

When we grow the tables, we forget to free the olds ones
up.

Noticed by Yan Zheng.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2005-08-05 04:12:48 -07:00
parent 2f60f8d357
commit b7656e7f29
1 changed files with 8 additions and 1 deletions
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9
net/ipv4/fib_semantics.c
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@ -593,10 +593,13 @@ static void fib_hash_move(struct hlist_head *new_info_hash,
struct hlist_head *new_laddrhash,
unsigned int new_size)
{
struct hlist_head *old_info_hash, *old_laddrhash;
unsigned int old_size = fib_hash_size;
unsigned int i;
unsigned int i, bytes;
write_lock(&fib_info_lock);
old_info_hash = fib_info_hash;
old_laddrhash = fib_info_laddrhash;
fib_hash_size = new_size;
for (i = 0; i < old_size; i++) {
@ -636,6 +639,10 @@ static void fib_hash_move(struct hlist_head *new_info_hash,
fib_info_laddrhash = new_laddrhash;
write_unlock(&fib_info_lock);
bytes = old_size * sizeof(struct hlist_head *);
fib_hash_free(old_info_hash, bytes);
fib_hash_free(old_laddrhash, bytes);
}
struct fib_info *