From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
To: Felipe Balbi <balbi@kernel.org>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org,
Richard Genoud <richard.genoud@gmail.com>,
Alexandre Belloni <alexandre.belloni@free-electrons.com>
Subject: [PATCH] usb: gadget: udc: atmel: fix endpoint name
Date: Thu, 15 Sep 2016 17:07:22 +0200 [thread overview]
Message-ID: <20160915150722.13103-1-alexandre.belloni@free-electrons.com> (raw)
Since commit c32b5bcfa3c4 ("ARM: dts: at91: Fix USB endpoint nodes"),
atmel_usba_udc fails with:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at include/linux/usb/gadget.h:405
ecm_do_notify+0x188/0x1a0
Modules linked in:
CPU: 0 PID: 0 Comm: swapper Not tainted 4.7.0+ #15
Hardware name: Atmel SAMA5
[<c010ccfc>] (unwind_backtrace) from [<c010a7ec>] (show_stack+0x10/0x14)
[<c010a7ec>] (show_stack) from [<c0115c10>] (__warn+0xe4/0xfc)
[<c0115c10>] (__warn) from [<c0115cd8>] (warn_slowpath_null+0x20/0x28)
[<c0115cd8>] (warn_slowpath_null) from [<c04377ac>] (ecm_do_notify+0x188/0x1a0)
[<c04377ac>] (ecm_do_notify) from [<c04379a4>] (ecm_set_alt+0x74/0x1ac)
[<c04379a4>] (ecm_set_alt) from [<c042f74c>] (composite_setup+0xfc0/0x19f8)
[<c042f74c>] (composite_setup) from [<c04356e8>] (usba_udc_irq+0x8f4/0xd9c)
[<c04356e8>] (usba_udc_irq) from [<c013ec9c>] (handle_irq_event_percpu+0x9c/0x158)
[<c013ec9c>] (handle_irq_event_percpu) from [<c013ed80>] (handle_irq_event+0x28/0x3c)
[<c013ed80>] (handle_irq_event) from [<c01416d4>] (handle_fasteoi_irq+0xa0/0x168)
[<c01416d4>] (handle_fasteoi_irq) from [<c013e3f8>] (generic_handle_irq+0x24/0x34)
[<c013e3f8>] (generic_handle_irq) from [<c013e640>] (__handle_domain_irq+0x54/0xa8)
[<c013e640>] (__handle_domain_irq) from [<c010b214>] (__irq_svc+0x54/0x70)
[<c010b214>] (__irq_svc) from [<c0107eb0>] (arch_cpu_idle+0x38/0x3c)
[<c0107eb0>] (arch_cpu_idle) from [<c0137300>] (cpu_startup_entry+0x9c/0xdc)
[<c0137300>] (cpu_startup_entry) from [<c0900c40>] (start_kernel+0x354/0x360)
[<c0900c40>] (start_kernel) from [<20008078>] (0x20008078)
---[ end trace e7cf9dcebf4815a6 ]---
Fixes: c32b5bcfa3c4 ("ARM: dts: at91: Fix USB endpoint nodes")
Reported-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
---
drivers/usb/gadget/udc/atmel_usba_udc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
index bb1f6c8f0f01..45bc997d0711 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.c
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
@@ -1978,7 +1978,7 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev,
dev_err(&pdev->dev, "of_probe: name error(%d)\n", ret);
goto err;
}
- ep->ep.name = name;
+ ep->ep.name = kasprintf(GFP_KERNEL, "ep%d", ep->index);
ep->ep_regs = udc->regs + USBA_EPT_BASE(i);
ep->dma_regs = udc->regs + USBA_DMA_BASE(i);
--
2.9.3
next reply other threads:[~2016-09-15 15:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-15 15:07 Alexandre Belloni [this message]
2016-09-16 8:36 ` Nicolas Ferre
2016-09-23 14:20 ` Nicolas Ferre
2016-09-23 15:03 ` Greg Kroah-Hartman
2016-09-26 7:18 ` Felipe Balbi
2016-09-26 10:47 ` Richard Genoud
2016-10-24 11:59 ` Nicolas Ferre
2016-10-24 12:23 ` Alexandre Belloni
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