diff options
| author | Tejun Heo <tj@kernel.org> | 2013-02-27 17:04:36 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-27 19:10:18 -0800 |
| commit | 2fa532c5d5af8959d1b0ea369324f6d44183dba4 (patch) | |
| tree | b440e50b7e6df524838658a9ea0f812a1c67fa4d | |
| parent | ec09ebc143818c7bb255cf2b79d97dae02a2e635 (diff) | |
ppp: convert to idr_alloc()
Convert to the much saner new idr interface.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/net/ppp/ppp_generic.c | 33 |
1 files changed, 4 insertions, 29 deletions
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c index 3db9131e922..72ff14b811c 100644 --- a/drivers/net/ppp/ppp_generic.c +++ b/drivers/net/ppp/ppp_generic.c @@ -2953,46 +2953,21 @@ static void __exit ppp_cleanup(void) * by holding all_ppp_mutex */ -static int __unit_alloc(struct idr *p, void *ptr, int n) -{ - int unit, err; - -again: - if (!idr_pre_get(p, GFP_KERNEL)) { - pr_err("PPP: No free memory for idr\n"); - return -ENOMEM; - } - - err = idr_get_new_above(p, ptr, n, &unit); - if (err < 0) { - if (err == -EAGAIN) - goto again; - return err; - } - - return unit; -} - /* associate pointer with specified number */ static int unit_set(struct idr *p, void *ptr, int n) { int unit; - unit = __unit_alloc(p, ptr, n); - if (unit < 0) - return unit; - else if (unit != n) { - idr_remove(p, unit); - return -EINVAL; - } - + unit = idr_alloc(p, ptr, n, n + 1, GFP_KERNEL); + if (unit == -ENOSPC) + unit = -EINVAL; return unit; } /* get new free unit number and associate pointer with it */ static int unit_get(struct idr *p, void *ptr) { - return __unit_alloc(p, ptr, 0); + return idr_alloc(p, ptr, 0, 0, GFP_KERNEL); } /* put unit number back to a pool */ |