From: Aditya Garg <gargaditya@linux.microsoft.com>
To: kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org,
decui@microsoft.com, longli@microsoft.com, andrew+netdev@lunn.ch,
davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com, horms@kernel.org,
shradhagupta@linux.microsoft.com, dipayanroy@linux.microsoft.com,
ernis@linux.microsoft.com, kees@kernel.org,
shacharr@microsoft.com, stephen@networkplumber.org,
gargaditya@microsoft.com, gargaditya@linux.microsoft.com,
ssengar@linux.microsoft.com, linux-hyperv@vger.kernel.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH net 1/2] net: mana: initialize gdma queue id to INVALID_QUEUE_ID
Date: Thu, 4 Jun 2026 01:01:25 -0700 [thread overview]
Message-ID: <20260604080137.1995269-2-gargaditya@linux.microsoft.com> (raw)
In-Reply-To: <20260604080137.1995269-1-gargaditya@linux.microsoft.com>
mana_gd_create_mana_wq_cq() leaves queue->id as 0 (from kzalloc_obj())
until mana_create_wq_obj() assigns the firmware-returned id. If creation
fails before that, cleanup calls mana_gd_destroy_cq() with id 0, NULLing
gc->cq_table[0] and silently breaking whichever real CQ owns that slot.
Initialize queue->id to INVALID_QUEUE_ID right after allocation, matching
mana_gd_create_eq(). The existing (id >= max_num_cqs) guard then
short-circuits cleanly.
Fixes: ca9c54d2d6a5 ("net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)")
Signed-off-by: Aditya Garg <gargaditya@linux.microsoft.com>
Reviewed-by: Dipayaan Roy <dipayanroy@linux.microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
---
drivers/net/ethernet/microsoft/mana/gdma_main.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c
index 712a0881d720..9d145517c6dc 100644
--- a/drivers/net/ethernet/microsoft/mana/gdma_main.c
+++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c
@@ -1200,6 +1200,8 @@ int mana_gd_create_mana_wq_cq(struct gdma_dev *gd,
if (!queue)
return -ENOMEM;
+ queue->id = INVALID_QUEUE_ID;
+
gmi = &queue->mem_info;
err = mana_gd_alloc_memory(gc, spec->queue_size, gmi);
if (err) {
--
2.43.0
next prev parent reply other threads:[~2026-06-04 8:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-04 8:01 [PATCH net 0/2] net: mana: fix error-path issues in queue setup Aditya Garg
2026-06-04 8:01 ` Aditya Garg [this message]
2026-06-04 8:01 ` [PATCH net 2/2] net: mana: guard TX wq object destroy with INVALID_MANA_HANDLE check Aditya Garg
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