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IB/ipath: convert to idr_alloc() 

Convert to the much saner new idr interface.

[yongjun_wei@trendmicro.com.cn: use GFP_NOWAIT under spin lock]
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Cc: Mike Marciniszyn <mike.marciniszyn@intel.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 17:04:22 -08:00 committed by Linus Torvalds
parent cbbbce1de2
commit 5c213f8641
1 changed files with 4 additions and 12 deletions
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16
drivers/infiniband/hw/ipath/ipath_driver.c
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@ -194,11 +194,6 @@ static struct ipath_devdata *ipath_alloc_devdata(struct pci_dev *pdev)
struct ipath_devdata *dd;
int ret;
if (!idr_pre_get(&unit_table, GFP_KERNEL)) {
dd = ERR_PTR(-ENOMEM);
goto bail;
}
dd = vzalloc(sizeof(*dd));
if (!dd) {
dd = ERR_PTR(-ENOMEM);
@ -206,9 +201,10 @@ static struct ipath_devdata *ipath_alloc_devdata(struct pci_dev *pdev)
}
dd->ipath_unit = -1;
idr_preload(GFP_KERNEL);
spin_lock_irqsave(&ipath_devs_lock, flags);
ret = idr_get_new(&unit_table, dd, &dd->ipath_unit);
ret = idr_alloc(&unit_table, dd, 0, 0, GFP_NOWAIT);
if (ret < 0) {
printk(KERN_ERR IPATH_DRV_NAME
": Could not allocate unit ID: error %d\n", -ret);
@ -216,6 +212,7 @@ static struct ipath_devdata *ipath_alloc_devdata(struct pci_dev *pdev)
dd = ERR_PTR(ret);
goto bail_unlock;
}
dd->ipath_unit = ret;
dd->pcidev = pdev;
pci_set_drvdata(pdev, dd);
@ -224,7 +221,7 @@ static struct ipath_devdata *ipath_alloc_devdata(struct pci_dev *pdev)
bail_unlock:
spin_unlock_irqrestore(&ipath_devs_lock, flags);
idr_preload_end();
bail:
return dd;
}
@ -2503,11 +2500,6 @@ static int __init infinipath_init(void)
* the PCI subsystem.
*/
idr_init(&unit_table);
if (!idr_pre_get(&unit_table, GFP_KERNEL)) {
printk(KERN_ERR IPATH_DRV_NAME ": idr_pre_get() failed\n");
ret = -ENOMEM;
goto bail;
}
ret = pci_register_driver(&ipath_driver);
if (ret < 0) {