From 63b7df9101895d1f0a259c567b3bab949a23075f Mon Sep 17 00:00:00 2001 From: Matthias Kaehlcke Date: Thu, 19 Jul 2007 01:49:38 -0700 Subject: [PATCH] drivers/edac: change from semaphore to mutex operation The EDAC core code uses a semaphore as mutex. use the mutex API instead of the (binary) semaphore. Matthaias wrote this, but since I had some patches ahead of it, I need to modify it to follow my patches. Signed-off-by: Matthias Kaehlcke Signed-off-by: Douglas Thompson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/edac/edac_mc.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index 1f22d8cad6..eae1ca1cae 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -35,7 +35,7 @@ /* lock to memory controller's control array */ -static DECLARE_MUTEX(mem_ctls_mutex); +static DEFINE_MUTEX(mem_ctls_mutex); static struct list_head mc_devices = LIST_HEAD_INIT(mc_devices); #ifdef CONFIG_EDAC_DEBUG @@ -334,7 +334,7 @@ int edac_mc_add_mc(struct mem_ctl_info *mci, int mc_idx) } } #endif - down(&mem_ctls_mutex); + mutex_lock(&mem_ctls_mutex); if (add_mc_to_global_list(mci)) goto fail0; @@ -352,14 +352,14 @@ int edac_mc_add_mc(struct mem_ctl_info *mci, int mc_idx) edac_mc_printk(mci, KERN_INFO, "Giving out device to %s %s: DEV %s\n", mci->mod_name, mci->ctl_name, dev_name(mci->dev)); - up(&mem_ctls_mutex); + mutex_unlock(&mem_ctls_mutex); return 0; fail1: del_mc_from_global_list(mci); fail0: - up(&mem_ctls_mutex); + mutex_unlock(&mem_ctls_mutex); return 1; } EXPORT_SYMBOL_GPL(edac_mc_add_mc); @@ -376,16 +376,16 @@ struct mem_ctl_info * edac_mc_del_mc(struct device *dev) struct mem_ctl_info *mci; debugf0("MC: %s()\n", __func__); - down(&mem_ctls_mutex); + mutex_lock(&mem_ctls_mutex); if ((mci = find_mci_by_dev(dev)) == NULL) { - up(&mem_ctls_mutex); + mutex_unlock(&mem_ctls_mutex); return NULL; } edac_remove_sysfs_mci_device(mci); del_mc_from_global_list(mci); - up(&mem_ctls_mutex); + mutex_unlock(&mem_ctls_mutex); edac_printk(KERN_INFO, EDAC_MC, "Removed device %d for %s %s: DEV %s\n", mci->mc_idx, mci->mod_name, mci->ctl_name, dev_name(mci->dev)); @@ -722,7 +722,7 @@ void edac_check_mc_devices(void) struct mem_ctl_info *mci; debugf3("%s()\n", __func__); - down(&mem_ctls_mutex); + mutex_lock(&mem_ctls_mutex); list_for_each(item, &mc_devices) { mci = list_entry(item, struct mem_ctl_info, link); @@ -731,5 +731,5 @@ void edac_check_mc_devices(void) mci->edac_check(mci); } - up(&mem_ctls_mutex); + mutex_unlock(&mem_ctls_mutex); } -- 2.39.5