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misc/tifm_core: convert to idr_alloc()

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Convert to the much saner new idr interface.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Tejun Heo 2013-02-27 17:04:31 -08:00 committed by Linus Torvalds
parent 3ab4ee8f80
commit 57f2667cc7
1 changed files with 6 additions and 5 deletions
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11
drivers/misc/tifm_core.c
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@ -196,13 +196,14 @@ int tifm_add_adapter(struct tifm_adapter *fm)
{
int rc;
if (!idr_pre_get(&tifm_adapter_idr, GFP_KERNEL))
return -ENOMEM;
idr_preload(GFP_KERNEL);
spin_lock(&tifm_adapter_lock);
rc = idr_get_new(&tifm_adapter_idr, fm, &fm->id);
rc = idr_alloc(&tifm_adapter_idr, fm, 0, 0, GFP_NOWAIT);
if (rc >= 0)
fm->id = rc;
spin_unlock(&tifm_adapter_lock);
if (rc)
idr_preload_end();
if (rc < 0)
return rc;
dev_set_name(&fm->dev, "tifm%u", fm->id);