linux-kernel - [PATCH RFC 48/77] mlx5: Return -ENOSPC when not enough MSI-X vectors available

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Message-Id: <28ed0fe9f5fee281652930a36246919dff14a33d.1380703263.git.agordeev@redhat.com>
Date:	Wed,  2 Oct 2013 12:49:04 +0200
From:	Alexander Gordeev <agordeev@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Alexander Gordeev <agordeev@...hat.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Ralf Baechle <ralf@...ux-mips.org>,
	Michael Ellerman <michael@...erman.id.au>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Ingo Molnar <mingo@...hat.com>, Tejun Heo <tj@...nel.org>,
	Dan Williams <dan.j.williams@...el.com>,
	Andy King <acking@...are.com>, Jon Mason <jon.mason@...el.com>,
	Matt Porter <mporter@...nel.crashing.org>,
	stable@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-mips@...ux-mips.org, linuxppc-dev@...ts.ozlabs.org,
	linux390@...ibm.com, linux-s390@...r.kernel.org, x86@...nel.org,
	linux-ide@...r.kernel.org, iss_storagedev@...com,
	linux-nvme@...ts.infradead.org, linux-rdma@...r.kernel.org,
	netdev@...r.kernel.org, e1000-devel@...ts.sourceforge.net,
	linux-driver@...gic.com,
	Solarflare linux maintainers <linux-net-drivers@...arflare.com>,
	"VMware, Inc." <pv-drivers@...are.com>, linux-scsi@...r.kernel.org
Subject: [PATCH RFC 48/77] mlx5: Return -ENOSPC when not enough MSI-X vectors available

Signed-off-by: Alexander Gordeev <agordeev@...hat.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/main.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 3573ba4..5e5c9a3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -122,7 +122,7 @@ static int mlx5_enable_msix(struct mlx5_core_dev *dev)
 	nvec = dev->caps.num_ports * num_online_cpus() + MLX5_EQ_VEC_COMP_BASE;
 	nvec = min_t(int, nvec, num_eqs);
 	if (nvec <= MLX5_EQ_VEC_COMP_BASE)
-		return -ENOMEM;
+		return -ENOSPC;
 
 	table->msix_arr = kzalloc(nvec * sizeof(*table->msix_arr), GFP_KERNEL);
 	if (!table->msix_arr)
@@ -144,7 +144,7 @@ retry:
 	mlx5_core_dbg(dev, "received %d MSI vectors out of %d requested\n", err, nvec);
 	kfree(table->msix_arr);
 
-	return 0;
+	return -ENOSPC;
 }
 
 static void mlx5_disable_msix(struct mlx5_core_dev *dev)
-- 
1.7.7.6

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