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path: root/drivers/memstick/core/memstick.c
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Diffstat (limited to 'drivers/memstick/core/memstick.c')
-rw-r--r--drivers/memstick/core/memstick.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/memstick/core/memstick.c b/drivers/memstick/core/memstick.c
index 4303b7ef73e2..e9a3eab7b0cf 100644
--- a/drivers/memstick/core/memstick.c
+++ b/drivers/memstick/core/memstick.c
@@ -511,14 +511,18 @@ int memstick_add_host(struct memstick_host *host)
{
int rc;
- if (!idr_pre_get(&memstick_host_idr, GFP_KERNEL))
- return -ENOMEM;
+ while (1) {
+ if (!idr_pre_get(&memstick_host_idr, GFP_KERNEL))
+ return -ENOMEM;
- spin_lock(&memstick_host_lock);
- rc = idr_get_new(&memstick_host_idr, host, &host->id);
- spin_unlock(&memstick_host_lock);
- if (rc)
- return rc;
+ spin_lock(&memstick_host_lock);
+ rc = idr_get_new(&memstick_host_idr, host, &host->id);
+ spin_unlock(&memstick_host_lock);
+ if (!rc)
+ break;
+ else if (rc != -EAGAIN)
+ return rc;
+ }
dev_set_name(&host->dev, "memstick%u", host->id);