summaryrefslogtreecommitdiffstats
path: root/drivers/dca/dca-sysfs.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/dca/dca-sysfs.c')
-rw-r--r--drivers/dca/dca-sysfs.c23
1 files changed, 10 insertions, 13 deletions
diff --git a/drivers/dca/dca-sysfs.c b/drivers/dca/dca-sysfs.c
index 591b659..126cf29 100644
--- a/drivers/dca/dca-sysfs.c
+++ b/drivers/dca/dca-sysfs.c
@@ -53,22 +53,19 @@ void dca_sysfs_remove_req(struct dca_provider *dca, int slot)
int dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev)
{
struct device *cd;
- int err = 0;
+ int ret;
-idr_try_again:
- if (!idr_pre_get(&dca_idr, GFP_KERNEL))
- return -ENOMEM;
+ idr_preload(GFP_KERNEL);
spin_lock(&dca_idr_lock);
- err = idr_get_new(&dca_idr, dca, &dca->id);
+
+ ret = idr_alloc(&dca_idr, dca, 0, 0, GFP_NOWAIT);
+ if (ret >= 0)
+ dca->id = ret;
+
spin_unlock(&dca_idr_lock);
- switch (err) {
- case 0:
- break;
- case -EAGAIN:
- goto idr_try_again;
- default:
- return err;
- }
+ idr_preload_end();
+ if (ret < 0)
+ return ret;
cd = device_create(dca_class, dev, MKDEV(0, 0), NULL, "dca%d", dca->id);
if (IS_ERR(cd)) {
OpenPOWER on IntegriCloud