diff options
| -rw-r--r-- | drivers/mmc/core/host.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 821cd822413..2a3593d9f87 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -429,19 +429,20 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev) int err; struct mmc_host *host; - if (!idr_pre_get(&mmc_host_idr, GFP_KERNEL)) - return NULL; - host = kzalloc(sizeof(struct mmc_host) + extra, GFP_KERNEL); if (!host) return NULL; /* scanning will be enabled when we're ready */ host->rescan_disable = 1; + idr_preload(GFP_KERNEL); spin_lock(&mmc_host_lock); - err = idr_get_new(&mmc_host_idr, host, &host->index); + err = idr_alloc(&mmc_host_idr, host, 0, 0, GFP_NOWAIT); + if (err >= 0) + host->index = err; spin_unlock(&mmc_host_lock); - if (err) + idr_preload_end(); + if (err < 0) goto free; dev_set_name(&host->class_dev, "mmc%d", host->index); |