linux-kernel - [PATCH RFC 60/77] qlcnic: Return -ENOSPC when not enough MSI-X vectors available

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Message-Id: <530f1aac8bdfcd600abe1eab52657409269f8a4a.1380703263.git.agordeev@redhat.com>
Date:	Wed,  2 Oct 2013 12:49:16 +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 60/77] qlcnic: Return -ENOSPC when not enough MSI-X vectors available

Signed-off-by: Alexander Gordeev <agordeev@...hat.com>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index c4c5023..c6018bb 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -620,7 +620,7 @@ int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 				 num_msix);
 			if (qlcnic_83xx_check(adapter)) {
 				if (err < (QLC_83XX_MINIMUM_VECTOR - tx_vector))
-					return err;
+					return -ENOSPC;
 				err -= (max_tx_rings + 1);
 				num_msix = rounddown_pow_of_two(err);
 				num_msix += (max_tx_rings + 1);
@@ -636,6 +636,7 @@ int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 					 num_msix);
 				goto enable_msix;
 			}
+			err = -ENOSPC;
 		} else {
 			dev_info(&pdev->dev,
 				 "Unable to allocate %d MSI-X interrupt vectors\n",
-- 
1.7.7.6

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