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| author | Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> | 2008-05-28 07:59:44 +0200 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2008-06-10 19:59:53 +0200 |
| commit | d737bdc141f0f040171fffbb7f9e08a825b27aab (patch) | |
| tree | 11b0777a92a0703a837982b5b726a90b5c6645f0 /drivers/pci/hotplug | |
| parent | pciehp: evaluate _OSC/OSHP before controller init (diff) | |
| download | linux-d737bdc141f0f040171fffbb7f9e08a825b27aab.tar.xz linux-d737bdc141f0f040171fffbb7f9e08a825b27aab.zip | |
pciehp: block signals while waiting for command completion
Since we need to wait for command completion for muximum 1sec, waiting
command should not be interrupted by a signal.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/hotplug')
| -rw-r--r-- | drivers/pci/hotplug/pciehp_hpc.c | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 6339c638701e..7e3a3d17c334 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -268,9 +268,8 @@ completed: return timeout; } -static inline int pcie_wait_cmd(struct controller *ctrl, int poll) +static inline void pcie_wait_cmd(struct controller *ctrl, int poll) { - int retval = 0; unsigned int msecs = pciehp_poll_mode ? 2500 : 1000; unsigned long timeout = msecs_to_jiffies(msecs); int rc; @@ -278,16 +277,9 @@ static inline int pcie_wait_cmd(struct controller *ctrl, int poll) if (poll) rc = pcie_poll_cmd(ctrl); else - rc = wait_event_interruptible_timeout(ctrl->queue, - !ctrl->cmd_busy, timeout); + rc = wait_event_timeout(ctrl->queue, !ctrl->cmd_busy, timeout); if (!rc) dbg("Command not completed in 1000 msec\n"); - else if (rc < 0) { - retval = -EINTR; - info("Command was interrupted by a signal\n"); - } - - return retval; } /** @@ -365,7 +357,7 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask) if (!(slot_ctrl & HP_INTR_ENABLE) || !(slot_ctrl & CMD_CMPL_INTR_ENABLE)) poll = 1; - retval = pcie_wait_cmd(ctrl, poll); + pcie_wait_cmd(ctrl, poll); } out: mutex_unlock(&ctrl->ctrl_lock); @@ -797,7 +789,7 @@ static irqreturn_t pcie_isr(int irq, void *dev_id) if (intr_loc & CMD_COMPLETED) { ctrl->cmd_busy = 0; smp_mb(); - wake_up_interruptible(&ctrl->queue); + wake_up(&ctrl->queue); } if (!(intr_loc & ~CMD_COMPLETED)) |