diff options
| author | Lee Duncan <lduncan@suse.com> | 2015-10-01 21:59:09 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-04 21:42:22 +0300 |
| commit | cfcf6a91aa0d59faddb423a65230eea7f230d057 (patch) | |
| tree | 3a5b491e7a888ffcff76ea1df505a49dc794a31b /drivers/base/soc.c | |
| parent | fa40ae34441286b2cb595468ef781e24573e9e7d (diff) | |
| download | linux-cfcf6a91aa0d59faddb423a65230eea7f230d057.tar.xz | |
base: soc: siplify ida usage
Simplify ida index allocation and removal by
using the ida_simple_* helper functions
Signed-off-by: Lee Duncan <lduncan@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base/soc.c')
| -rw-r--r-- | drivers/base/soc.c | 21 |
1 files changed, 5 insertions, 16 deletions
diff --git a/drivers/base/soc.c b/drivers/base/soc.c index 39fca01c8fa1..75b98aad6faf 100644 --- a/drivers/base/soc.c +++ b/drivers/base/soc.c @@ -16,7 +16,6 @@ #include <linux/err.h> static DEFINE_IDA(soc_ida); -static DEFINE_SPINLOCK(soc_lock); static ssize_t soc_info_get(struct device *dev, struct device_attribute *attr, @@ -122,20 +121,10 @@ struct soc_device *soc_device_register(struct soc_device_attribute *soc_dev_attr } /* Fetch a unique (reclaimable) SOC ID. */ - do { - if (!ida_pre_get(&soc_ida, GFP_KERNEL)) { - ret = -ENOMEM; - goto out2; - } - - spin_lock(&soc_lock); - ret = ida_get_new(&soc_ida, &soc_dev->soc_dev_num); - spin_unlock(&soc_lock); - - } while (ret == -EAGAIN); - - if (ret) + ret = ida_simple_get(&soc_ida, 0, 0, GFP_KERNEL); + if (ret < 0) goto out2; + soc_dev->soc_dev_num = ret; soc_dev->attr = soc_dev_attr; soc_dev->dev.bus = &soc_bus_type; @@ -151,7 +140,7 @@ struct soc_device *soc_device_register(struct soc_device_attribute *soc_dev_attr return soc_dev; out3: - ida_remove(&soc_ida, soc_dev->soc_dev_num); + ida_simple_remove(&soc_ida, soc_dev->soc_dev_num); out2: kfree(soc_dev); out1: @@ -161,7 +150,7 @@ out1: /* Ensure soc_dev->attr is freed prior to calling soc_device_unregister. */ void soc_device_unregister(struct soc_device *soc_dev) { - ida_remove(&soc_ida, soc_dev->soc_dev_num); + ida_simple_remove(&soc_ida, soc_dev->soc_dev_num); device_unregister(&soc_dev->dev); } |