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Subject[PATCH v2] thunderbolt: Add the missed ida_simple_remove() in ring_request_msix()
Date
ring_request_msix() misses to call ida_simple_remove() in an error path.
Add a label 'err_ida_remove' and jump to it.

Fixes: 046bee1f9ab8 ("thunderbolt: Add MSI-X support")
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
---
drivers/thunderbolt/nhi.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
index 5f7489fa1327..e066888c4b41 100644
--- a/drivers/thunderbolt/nhi.c
+++ b/drivers/thunderbolt/nhi.c
@@ -406,11 +406,22 @@ static int ring_request_msix(struct tb_ring *ring, bool no_suspend)
ring->vector = ret;

ring->irq = pci_irq_vector(ring->nhi->pdev, ring->vector);
- if (ring->irq < 0)
- return ring->irq;
+ if (ring->irq < 0) {
+ ret = ring->irq;
+ goto err_ida_remove;
+ }

irqflags = no_suspend ? IRQF_NO_SUSPEND : 0;
- return request_irq(ring->irq, ring_msix, irqflags, "thunderbolt", ring);
+ ret = request_irq(ring->irq, ring_msix, irqflags, "thunderbolt", ring);
+ if (ret)
+ goto err_ida_remove;
+
+ return 0;
+
+err_ida_remove:
+ ida_simple_remove(&nhi->msix_ida, ring->vector);
+
+ return ret;
}

static void ring_release_msix(struct tb_ring *ring)
--
2.17.1
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