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author | James Morris <james.l.morris@oracle.com> | 2014-01-06 15:23:01 +0400 |
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committer | James Morris <james.l.morris@oracle.com> | 2014-01-06 15:23:01 +0400 |
commit | 38fd2c202a3d82bc12430bce5789fa2c2a406f71 (patch) | |
tree | a73513dbb015155f5236b391709b9083916b3136 /net/tipc/handler.c | |
parent | dcf4e392867bf98d50ad108ed7c2bfb941e8c33d (diff) | |
parent | d6e0a2dd12f4067a5bcefb8bbd8ddbeff800afbc (diff) | |
download | linux-38fd2c202a3d82bc12430bce5789fa2c2a406f71.tar.xz |
Merge to v3.13-rc7 for prerequisite changes in the Xen code for TPM
Diffstat (limited to 'net/tipc/handler.c')
-rw-r--r-- | net/tipc/handler.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/net/tipc/handler.c b/net/tipc/handler.c index b36f0fcd9bdf..e4bc8a296744 100644 --- a/net/tipc/handler.c +++ b/net/tipc/handler.c @@ -56,12 +56,13 @@ unsigned int tipc_k_signal(Handler routine, unsigned long argument) { struct queue_item *item; + spin_lock_bh(&qitem_lock); if (!handler_enabled) { pr_err("Signal request ignored by handler\n"); + spin_unlock_bh(&qitem_lock); return -ENOPROTOOPT; } - spin_lock_bh(&qitem_lock); item = kmem_cache_alloc(tipc_queue_item_cache, GFP_ATOMIC); if (!item) { pr_err("Signal queue out of memory\n"); @@ -112,10 +113,14 @@ void tipc_handler_stop(void) struct list_head *l, *n; struct queue_item *item; - if (!handler_enabled) + spin_lock_bh(&qitem_lock); + if (!handler_enabled) { + spin_unlock_bh(&qitem_lock); return; - + } handler_enabled = 0; + spin_unlock_bh(&qitem_lock); + tasklet_kill(&tipc_tasklet); spin_lock_bh(&qitem_lock); |