| From | Tejun Heo <> | Subject | [PATCH 36/62] mmc: convert to idr_alloc() | Date | Sat, 2 Feb 2013 17:20:37 -0800 |
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Convert to the much saner new idr interface.
Only compile tested.
Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Chris Ball <cjb@laptop.org> Cc: linux-mmc@vger.kernel.org --- This patch depends on an earlier idr changes and I think it would be best to route these together through -mm. Please holler if there's any objection. Thanks.
drivers/mmc/core/host.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index ee2e16b..1117de7 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -306,19 +306,20 @@ 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); -- 1.8.1
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