the EDAC core code uses a semaphore as mutex. use the mutex API instead of the (binary) semaphore
Signed-off-by: Matthias Kaehlcke <[EMAIL PROTECTED]> -- diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index 7b62230..f217750 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -50,7 +50,7 @@ static int panic_on_ue; static int poll_msec = 1000; /* 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); static struct task_struct *edac_thread; @@ -1489,7 +1489,7 @@ 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; @@ -1507,14 +1507,14 @@ 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); @@ -1531,16 +1531,16 @@ 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)); @@ -1877,7 +1877,7 @@ static inline void 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); @@ -1886,7 +1886,7 @@ static inline void check_mc_devices(void) mci->edac_check(mci); } - up(&mem_ctls_mutex); + mutex_unlock(&mem_ctls_mutex); } /* -- Matthias Kaehlcke Linux Application Developer Barcelona Don't walk behind me, I may not lead Don't walk in front of me, I may not follow Just walk beside me and be my friend (Albert Camus) .''`. using free software / Debian GNU/Linux | http://debian.org : :' : `. `'` gpg --keyserver pgp.mit.edu --recv-keys 47D8E5D4 `- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/