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authorAl Cooper <alcooperx@gmail.com>2015-07-24 23:09:36 +0300
committerFelipe Balbi <balbi@ti.com>2015-07-27 18:15:06 +0300
commit02c3b4c75994888e58a6e6e8176640cde9822597 (patch)
tree1c1d20dbe23a48c896c70f9d6745eb22664df276 /drivers/usb/gadget/udc/bdc/bdc_ep.c
parentcbfe8fa6cd672011c755c3cd85c9ffd4e2d10a6f (diff)
downloadlinux-02c3b4c75994888e58a6e6e8176640cde9822597.tar.xz
usb: gadget: bdc: fix a driver crash on disconnect
ep_dequeue() in bdc_ep.c was capturing the hw dequeue pointer incorrectly by reading the wrong register for the upper 32 bits. Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget/udc/bdc/bdc_ep.c')
-rw-r--r--drivers/usb/gadget/udc/bdc/bdc_ep.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/gadget/udc/bdc/bdc_ep.c b/drivers/usb/gadget/udc/bdc/bdc_ep.c
index b04980cf6dc4..1efa61265d8d 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_ep.c
+++ b/drivers/usb/gadget/udc/bdc/bdc_ep.c
@@ -779,7 +779,7 @@ static int ep_dequeue(struct bdc_ep *ep, struct bdc_req *req)
/* The current hw dequeue pointer */
tmp_32 = bdc_readl(bdc->regs, BDC_EPSTS0(0));
deq_ptr_64 = tmp_32;
- tmp_32 = bdc_readl(bdc->regs, BDC_EPSTS0(1));
+ tmp_32 = bdc_readl(bdc->regs, BDC_EPSTS1(0));
deq_ptr_64 |= ((u64)tmp_32 << 32);
/* we have the dma addr of next bd that will be fetched by hardware */