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authorFabian Frederick <fabf@skynet.be>2015-02-23 18:38:24 +0100
committerDavid S. Miller <davem@davemloft.net>2015-02-23 17:21:11 -0500
commita948f8ce771a1f07c17ed8bcb51f59f69129a51c (patch)
treeebb5f5c97f00edc2fec15b4518e6f29ccdcbe3f7 /net
parent30ff54765976e132674e3eae2071ed8ed494665c (diff)
downloadop-kernel-dev-a948f8ce771a1f07c17ed8bcb51f59f69129a51c.zip
op-kernel-dev-a948f8ce771a1f07c17ed8bcb51f59f69129a51c.tar.gz
irda: replace current->state by set_current_state()
Use helper functions to access current->state. Direct assignments are prone to races and therefore buggy. current->state = TASK_RUNNING can be replaced by __set_current_state() Thanks to Peter Zijlstra for the exact definition of the problem. Suggested-By: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/irda/ircomm/ircomm_tty.c2
-rw-r--r--net/irda/irnet/irnet_ppp.c4
2 files changed, 3 insertions, 3 deletions
diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c
index 40695b9..9940a41 100644
--- a/net/irda/ircomm/ircomm_tty.c
+++ b/net/irda/ircomm/ircomm_tty.c
@@ -811,7 +811,7 @@ static void ircomm_tty_wait_until_sent(struct tty_struct *tty, int timeout)
break;
}
spin_unlock_irqrestore(&self->spinlock, flags);
- current->state = TASK_RUNNING;
+ __set_current_state(TASK_RUNNING);
}
/*
diff --git a/net/irda/irnet/irnet_ppp.c b/net/irda/irnet/irnet_ppp.c
index 3c83a1e..1215693 100644
--- a/net/irda/irnet/irnet_ppp.c
+++ b/net/irda/irnet/irnet_ppp.c
@@ -305,7 +305,7 @@ irnet_ctrl_read(irnet_socket * ap,
/* Put ourselves on the wait queue to be woken up */
add_wait_queue(&irnet_events.rwait, &wait);
- current->state = TASK_INTERRUPTIBLE;
+ set_current_state(TASK_INTERRUPTIBLE);
for(;;)
{
/* If there is unread events */
@@ -321,7 +321,7 @@ irnet_ctrl_read(irnet_socket * ap,
/* Yield and wait to be woken up */
schedule();
}
- current->state = TASK_RUNNING;
+ __set_current_state(TASK_RUNNING);
remove_wait_queue(&irnet_events.rwait, &wait);
/* Did we got it ? */
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