Signed-off-by: Lee Duncan <lduncan@xxxxxxxx>
---
drivers/mmc/core/host.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 99a9c9011c50..5aa2330f074c 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -40,9 +40,8 @@ static DEFINE_SPINLOCK(mmc_host_lock);
static void mmc_host_classdev_release(struct device *dev)
{
struct mmc_host *host = cls_dev_to_mmc_host(dev);
- spin_lock(&mmc_host_lock);
- idr_remove(&mmc_host_idr, host->index);
- spin_unlock(&mmc_host_lock);
+
+ idr_put_index(&mmc_host_idr, &mmc_host_lock, host->index);
kfree(host);
}
@@ -559,17 +558,12 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
/* scanning will be enabled when we're ready */
host->rescan_disable = 1;
- idr_preload(GFP_KERNEL);
- spin_lock(&mmc_host_lock);
- err = idr_alloc(&mmc_host_idr, host, 0, 0, GFP_NOWAIT);
- if (err >= 0)
- host->index = err;
- spin_unlock(&mmc_host_lock);
- idr_preload_end();
+ err = idr_get_index(&mmc_host_idr, &mmc_host_lock, host);
if (err < 0) {
kfree(host);
return NULL;
}
+ host->index = err;
dev_set_name(&host->class_dev, "mmc%d", host->index);
--
2.1.4
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