diff options
| author | Aditya Garg <gargaditya@linux.microsoft.com> | 2026-07-27 04:37:59 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-07-29 17:46:35 -0700 |
| commit | e67cc80b50f587cd1d8ffc8989dcec3291720bc3 (patch) | |
| tree | bd42bbac3ff7d5d57678b5787f21f314dfff95da | |
| parent | 4107af9967e9ec049091b8f009374c4981d458cf (diff) | |
net: mana: Return error code from mana_create_rxq()
mana_create_rxq() returns a struct mana_rxq pointer and returns NULL on
any failure. The caller, mana_add_rx_queues(), cannot tell what went
wrong and hardcodes the error as -ENOMEM. As a result the actual failure
reported by the lower layers (for example -EPROTO from a failed HW
request) is masked and every RX queue creation failure looks like an
out-of-memory error.
Return an ERR_PTR() encoded error code from mana_create_rxq() on failure
instead of NULL. The caller now propagates the returned error code
directly instead of substituting -ENOMEM.
Fixes: ca9c54d2d6a5 ("net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)")
Signed-off-by: Aditya Garg <gargaditya@linux.microsoft.com>
Reviewed-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260727113759.2881500-1-gargaditya@linux.microsoft.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/microsoft/mana/mana_en.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/ethernet/microsoft/mana/mana_en.c index 9d9bfd116dab..92bb55935c1c 100644 --- a/drivers/net/ethernet/microsoft/mana/mana_en.c +++ b/drivers/net/ethernet/microsoft/mana/mana_en.c @@ -2829,7 +2829,7 @@ static struct mana_rxq *mana_create_rxq(struct mana_port_context *apc, rxq = kvzalloc_flex(*rxq, rx_oobs, apc->rx_queue_size); if (!rxq) - return NULL; + return ERR_PTR(-ENOMEM); rxq->ndev = ndev; rxq->num_rx_buf = apc->rx_queue_size; @@ -2930,7 +2930,7 @@ out: mana_destroy_rxq(apc, rxq, false); - return NULL; + return ERR_PTR(err); } static void mana_create_rxq_debugfs(struct mana_port_context *apc, int idx) @@ -2964,8 +2964,8 @@ static int mana_add_rx_queues(struct mana_port_context *apc, for (i = 0; i < apc->num_queues; i++) { rxq = mana_create_rxq(apc, i, &apc->eqs[i], ndev); - if (!rxq) { - err = -ENOMEM; + if (IS_ERR(rxq)) { + err = PTR_ERR(rxq); netdev_err(ndev, "Failed to create rxq %d : %d\n", i, err); goto out; } |