This is a note to let you know that I've just added the patch titled
IB/hifi1: add a null check of kzalloc_node in hfi1_ipoib_txreq_init
to the 6.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ib-hifi1-add-a-null-check-of-kzalloc_node-in-hfi1_ip.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 85d151da2ae8dfeec4c4ecd1139c143086614463
Author: Kang Chen <void0red@xxxxxxxxx>
Date: Mon Feb 27 18:02:12 2023 +0800
IB/hifi1: add a null check of kzalloc_node in hfi1_ipoib_txreq_init
[ Upstream commit c874ad879c2f29ebe040a34b974389875c0d81eb ]
kzalloc_node may fails, check it and do the cleanup.
Fixes: b1151b74ff68 ("IB/hfi1: Fix alloc failure with larger txqueuelen")
Signed-off-by: Kang Chen <void0red@xxxxxxxxx>
Link: https://lore.kernel.org/r/20230227100212.910820-1-void0red@xxxxxxxxx
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/infiniband/hw/hfi1/ipoib_tx.c b/drivers/infiniband/hw/hfi1/ipoib_tx.c
index 5d9a7b09ca37e..349eb41391368 100644
--- a/drivers/infiniband/hw/hfi1/ipoib_tx.c
+++ b/drivers/infiniband/hw/hfi1/ipoib_tx.c
@@ -737,10 +737,13 @@ int hfi1_ipoib_txreq_init(struct hfi1_ipoib_dev_priv *priv)
txq->tx_ring.shift = ilog2(tx_item_size);
txq->tx_ring.avail = hfi1_ipoib_ring_hwat(txq);
tx_ring = &txq->tx_ring;
- for (j = 0; j < tx_ring_size; j++)
+ for (j = 0; j < tx_ring_size; j++) {
hfi1_txreq_from_idx(tx_ring, j)->sdma_hdr =
kzalloc_node(sizeof(*tx->sdma_hdr),
GFP_KERNEL, priv->dd->node);
+ if (!hfi1_txreq_from_idx(tx_ring, j)->sdma_hdr)
+ goto free_txqs;
+ }
netif_napi_add_tx(dev, &txq->napi, hfi1_ipoib_poll_tx_ring);
}
