diff mbox

[2/7,linux-next] mISDN: replace current->state by set_current_state()

Message ID 1424455977-21903-2-git-send-email-fabf@skynet.be
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Fabian Frederick Feb. 20, 2015, 6:12 p.m. UTC
Use helper function to access current->state.
Direct assignments are prone to races and therefore buggy.

Thanks to Peter Zijlstra for the exact definition of the problem.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
---
 drivers/isdn/hardware/mISDN/hfcpci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

David Miller Feb. 22, 2015, 8:24 p.m. UTC | #1
From: Fabian Frederick <fabf@skynet.be>
Date: Fri, 20 Feb 2015 19:12:52 +0100

> Use helper function to access current->state.
> Direct assignments are prone to races and therefore buggy.
> 
> Thanks to Peter Zijlstra for the exact definition of the problem.
> 
> Signed-off-by: Fabian Frederick <fabf@skynet.be>

Applied.
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diff mbox

Patch

diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c
index 3c92780..ff48da6 100644
--- a/drivers/isdn/hardware/mISDN/hfcpci.c
+++ b/drivers/isdn/hardware/mISDN/hfcpci.c
@@ -1755,7 +1755,7 @@  init_card(struct hfc_pci *hc)
 		enable_hwirq(hc);
 		spin_unlock_irqrestore(&hc->lock, flags);
 		/* Timeout 80ms */
-		current->state = TASK_UNINTERRUPTIBLE;
+		set_current_state(TASK_UNINTERRUPTIBLE);
 		schedule_timeout((80 * HZ) / 1000);
 		printk(KERN_INFO "HFC PCI: IRQ %d count %d\n",
 		       hc->irq, hc->irqcnt);