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authorKevin Hilman <khilman@linaro.org>2013-12-20 08:30:50 -0800
committerKevin Hilman <khilman@linaro.org>2013-12-20 08:30:50 -0800
commitcd15c51d6c2f577f896471a058f33a95f164dba2 (patch)
tree9d42b8ea581ca35bdf75467b8bbbab21e7056ff9 /net/tipc/handler.c
parent5b8314a98888b12159d0b1b14982b8dd2d94e3f5 (diff)
parent130f769e81fc472beb2211320777e26050e3fa15 (diff)
Merge tag 'omap-for-v3.13/display-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
I accidentally removed some mux code for omap4 that I thought was dead code as omap4 has been booting with device tree only since v3.10. Turns out I also removed some display related mux code, so let's revert that except for the dead code parts. * tag 'omap-for-v3.13/display-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (439 commits) Revert "ARM: OMAP2+: Remove legacy mux code for display.c" +Linux 3.13-rc4
Diffstat (limited to 'net/tipc/handler.c')
-rw-r--r--net/tipc/handler.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/net/tipc/handler.c b/net/tipc/handler.c
index b36f0fcd9bd..e4bc8a29674 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);