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| author | Doug Thompson <dougthompson@xmission.com> | 2007-07-19 01:50:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-19 10:04:56 -0700 |
| commit | 0ca84761faeb9d49301d45b39859411c7a124690 (patch) | |
| tree | 742416b9c5db96227be2de0004b6b81058779029 /drivers/edac/edac_device.c | |
| parent | 7f065e723b02afb0d36a2aae8e6d206ba2667fc6 (diff) | |
| download | op-kernel-dev-0ca84761faeb9d49301d45b39859411c7a124690.zip op-kernel-dev-0ca84761faeb9d49301d45b39859411c7a124690.tar.gz | |
drivers/edac: fix edac_device semaphore to mutex
A previous patch changed the edac_mc src file from semaphore usage to mutex
This patch changes the edac_device src file as well, from semaphore use to
mutex operation.
Use a mutex primitive for mutex operations, as it does not require a
semaphore
Cc: Alan Cox alan@lxorguk.ukuu.org.uk
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/edac/edac_device.c')
| -rw-r--r-- | drivers/edac/edac_device.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c index 1d2eb20..b53e8d5 100644 --- a/drivers/edac/edac_device.c +++ b/drivers/edac/edac_device.c @@ -33,7 +33,7 @@ #include "edac_module.h" /* lock to memory controller's control array 'edac_device_list' */ -static DECLARE_MUTEX(device_ctls_mutex); +static DEFINE_MUTEX(device_ctls_mutex); static struct list_head edac_device_list = LIST_HEAD_INIT(edac_device_list); #ifdef CONFIG_EDAC_DEBUG @@ -340,7 +340,7 @@ static void edac_device_workq_function(struct work_struct *work_req) struct edac_device_ctl_info *edac_dev = to_edac_device_ctl_work(d_work); //debugf0("%s() here and running\n", __func__); - down(&device_ctls_mutex); + mutex_lock(&device_ctls_mutex); /* Only poll controllers that are running polled and have a check */ if ((edac_dev->op_state == OP_RUNNING_POLL) && @@ -348,7 +348,7 @@ static void edac_device_workq_function(struct work_struct *work_req) edac_dev->edac_check(edac_dev); } - up(&device_ctls_mutex); + mutex_unlock(&device_ctls_mutex); /* Reschedule */ queue_delayed_work(edac_workqueue, &edac_dev->work, edac_dev->delay); @@ -393,7 +393,7 @@ void edac_device_workq_teardown(struct edac_device_ctl_info *edac_dev) void edac_device_reset_delay_period(struct edac_device_ctl_info *edac_dev, unsigned long value) { - down(&device_ctls_mutex); + mutex_lock(&device_ctls_mutex); /* cancel the current workq request */ edac_device_workq_teardown(edac_dev); @@ -401,7 +401,7 @@ void edac_device_reset_delay_period(struct edac_device_ctl_info *edac_dev, /* restart the workq request, with new delay value */ edac_device_workq_setup(edac_dev, value); - up(&device_ctls_mutex); + mutex_unlock(&device_ctls_mutex); } /** @@ -425,7 +425,7 @@ int edac_device_add_device(struct edac_device_ctl_info *edac_dev, int edac_idx) if (edac_debug_level >= 3) edac_device_dump_device(edac_dev); #endif - down(&device_ctls_mutex); + mutex_lock(&device_ctls_mutex); if (add_edac_dev_to_global_list(edac_dev)) goto fail0; @@ -463,7 +463,7 @@ int edac_device_add_device(struct edac_device_ctl_info *edac_dev, int edac_idx) dev_name(edac_dev), edac_op_state_to_string(edac_dev->op_state)); - up(&device_ctls_mutex); + mutex_unlock(&device_ctls_mutex); return 0; fail1: @@ -471,7 +471,7 @@ fail1: del_edac_device_from_global_list(edac_dev); fail0: - up(&device_ctls_mutex); + mutex_unlock(&device_ctls_mutex); return 1; } EXPORT_SYMBOL_GPL(edac_device_add_device); @@ -495,12 +495,12 @@ struct edac_device_ctl_info *edac_device_del_device(struct device *dev) debugf0("MC: %s()\n", __func__); - down(&device_ctls_mutex); + mutex_lock(&device_ctls_mutex); /* Find the structure on the list, if not there, then leave */ edac_dev = find_edac_device_by_dev(dev); if (edac_dev == NULL) { - up(&device_ctls_mutex); + mutex_unlock(&device_ctls_mutex); return NULL; } @@ -516,7 +516,7 @@ struct edac_device_ctl_info *edac_device_del_device(struct device *dev) /* deregister from global list */ del_edac_device_from_global_list(edac_dev); - up(&device_ctls_mutex); + mutex_unlock(&device_ctls_mutex); edac_printk(KERN_INFO, EDAC_MC, "Removed device %d for %s %s: DEV %s\n", |
