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Date: Sat, 18 May 2013 11:57:29 +0900 From: Jonghwan Choi <jhbird.choi@...il.com> To: Jon Mason <jon.mason@...el.com> Cc: stable@...r.kernel.org, linux-kernel@...r.kernel.org, Jonghwan Choi <jhbird.choi@...sung.com> Subject: [PATCH 3.9-stable] NTB: Multiple NTB client fix From: Jon Mason <jon.mason@...el.com> This patch looks like it should be in the 3.9-stable tree, should we apply it? ------------------ From: "Jon Mason <jon.mason@...el.com>" commit 8b19d450ad188d402a183ff4a4d40f31c3916fbf upstream Fix issue with adding multiple ntb client devices to the ntb virtual bus. Previously, multiple devices would be added with the same name, resulting in crashes. To get around this issue, add a unique number to the device when it is added. Cc: <stable@...r.kernel.org> # 3.9.x: ad3e2751: ntb: off by one Cc: <stable@...r.kernel.org> # 3.9.x: cc0f868d: NTB: fix pointer math Cc: <stable@...r.kernel.org> # 3.9.x: 113fc505: NTB: Handle 64bit BAR Cc: <stable@...r.kernel.org> # 3.9.x: b77b2637: NTB: Link toggle memory Cc: <stable@...r.kernel.org> # 3.9.x: 90f9e934: NTB: reset tx_index on Cc: <stable@...r.kernel.org> # 3.9.x: c9d534c8: NTB: Correctly handle receive Cc: <stable@...r.kernel.org> # 3.9.x: c336acd3: NTB: memcpy lockup workaround Cc: <stable@...r.kernel.org> # 3.9.x: 904435cf: ntb_netdev: remove from list Signed-off-by: Jon Mason <jon.mason@...el.com> Signed-off-by: Jonghwan Choi <jhbird.choi@...sung.com> --- drivers/ntb/ntb_transport.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c index 0f66daa..f365b2f 100644 --- a/drivers/ntb/ntb_transport.c +++ b/drivers/ntb/ntb_transport.c @@ -300,7 +300,7 @@ int ntb_register_client_dev(char *device_name) { struct ntb_transport_client_dev *client_dev; struct ntb_transport *nt; - int rc; + int rc, i = 0; if (list_empty(&ntb_transport_list)) return -ENODEV; @@ -318,7 +318,7 @@ int ntb_register_client_dev(char *device_name) dev = &client_dev->dev; /* setup and register client devices */ - dev_set_name(dev, "%s", device_name); + dev_set_name(dev, "%s%d", device_name, i); dev->bus = &ntb_bus_type; dev->release = ntb_client_release; dev->parent = &ntb_query_pdev(nt->ndev)->dev; @@ -330,6 +330,7 @@ int ntb_register_client_dev(char *device_name) } list_add_tail(&client_dev->entry, &nt->client_devs); + i++; } return 0; -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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