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| author | Eric Dumazet <edumazet@google.com> | 2012-05-17 23:52:26 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-10 00:33:03 +0900 |
| commit | a2abc1310ff689486730215fcea629b74b01abe4 (patch) | |
| tree | 73d57e9ac12a1180a4af0a95c090e1aa4425125f /net/core | |
| parent | 45d21c136849cda838e77928d544fc7cd9d6239c (diff) | |
| download | kernel_samsung_tuna-a2abc1310ff689486730215fcea629b74b01abe4.zip kernel_samsung_tuna-a2abc1310ff689486730215fcea629b74b01abe4.tar.gz kernel_samsung_tuna-a2abc1310ff689486730215fcea629b74b01abe4.tar.bz2 | |
pktgen: fix module unload for good
[ Upstream commit d4b1133558e0d417342d5d2c49e4c35b428ff20d ]
commit c57b5468406 (pktgen: fix crash at module unload) did a very poor
job with list primitives.
1) list_splice() arguments were in the wrong order
2) list_splice(list, head) has undefined behavior if head is not
initialized.
3) We should use the list_splice_init() variant to clear pktgen_threads
list.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/pktgen.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/pktgen.c b/net/core/pktgen.c index 0865ea0..c0e0f76 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -3755,13 +3755,13 @@ static void __exit pg_cleanup(void) { struct pktgen_thread *t; struct list_head *q, *n; - struct list_head list; + LIST_HEAD(list); /* Stop all interfaces & threads */ pktgen_exiting = true; mutex_lock(&pktgen_thread_lock); - list_splice(&list, &pktgen_threads); + list_splice_init(&pktgen_threads, &list); mutex_unlock(&pktgen_thread_lock); list_for_each_safe(q, n, &list) { |