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authorMatthew Wilcox <willy@infradead.org>2018-06-11 15:46:46 -0400
committerMatthew Wilcox <willy@infradead.org>2018-08-21 23:54:18 -0400
commit37ae133c2e079d50d6198a4a230732e5016676de (patch)
treee843b462c3fe4740ee652ef44963a5af5bc2e8c3 /drivers
parent5963e78d0cb6d5950cb22c1c0a9a31067483933d (diff)
downloadlinux-37ae133c2e079d50d6198a4a230732e5016676de.tar.bz2
rsxx: Convert to new IDA API
Eliminate the custom spinlock and the call to ida_pre_get. Also add a call to ida_free() in the card remove routine, which I believe fixes a bug in this driver. Signed-off-by: Matthew Wilcox <willy@infradead.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/block/rsxx/core.c21
1 files changed, 5 insertions, 16 deletions
diff --git a/drivers/block/rsxx/core.c b/drivers/block/rsxx/core.c
index b7d71914a32a..f2c631ce793c 100644
--- a/drivers/block/rsxx/core.c
+++ b/drivers/block/rsxx/core.c
@@ -58,7 +58,6 @@ MODULE_PARM_DESC(sync_start, "On by Default: Driver load will not complete "
"until the card startup has completed.");
static DEFINE_IDA(rsxx_disk_ida);
-static DEFINE_SPINLOCK(rsxx_ida_lock);
/* --------------------Debugfs Setup ------------------- */
@@ -771,19 +770,10 @@ static int rsxx_pci_probe(struct pci_dev *dev,
card->dev = dev;
pci_set_drvdata(dev, card);
- do {
- if (!ida_pre_get(&rsxx_disk_ida, GFP_KERNEL)) {
- st = -ENOMEM;
- goto failed_ida_get;
- }
-
- spin_lock(&rsxx_ida_lock);
- st = ida_get_new(&rsxx_disk_ida, &card->disk_id);
- spin_unlock(&rsxx_ida_lock);
- } while (st == -EAGAIN);
-
- if (st)
+ st = ida_alloc(&rsxx_disk_ida, GFP_KERNEL);
+ if (st < 0)
goto failed_ida_get;
+ card->disk_id = st;
st = pci_enable_device(dev);
if (st)
@@ -985,9 +975,7 @@ failed_request_regions:
failed_dma_mask:
pci_disable_device(dev);
failed_enable:
- spin_lock(&rsxx_ida_lock);
- ida_remove(&rsxx_disk_ida, card->disk_id);
- spin_unlock(&rsxx_ida_lock);
+ ida_free(&rsxx_disk_ida, card->disk_id);
failed_ida_get:
kfree(card);
@@ -1050,6 +1038,7 @@ static void rsxx_pci_remove(struct pci_dev *dev)
pci_disable_device(dev);
pci_release_regions(dev);
+ ida_free(&rsxx_disk_ida, card->disk_id);
kfree(card);
}