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| author |   Ingo Molnar <mingo@kernel.org> | 2020-05-25 15:10:37 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-05-25 15:10:37 +0200 |
| commit | a5d8e55b2c7d3d18d7837af0ef8d1477eeeb919c (patch) | |
| tree | fe07d3af2f6f13d005da832fe3d18d5d257fb9bd /drivers/usb/core/message.c | |
| parent | efi/libstub: Re-enable command line initrd loading for x86 (diff) | |
| parent | Linux 5.7-rc7 (diff) | |
| download | linux-dev-a5d8e55b2c7d3d18d7837af0ef8d1477eeeb919c.tar.xz linux-dev-a5d8e55b2c7d3d18d7837af0ef8d1477eeeb919c.zip | |
Merge tag 'v5.7-rc7' into efi/core, to refresh the branch and pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/usb/core/message.c')
| -rw-r--r-- | drivers/usb/core/message.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index d5f834f16993..6197938dcc2d 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -589,12 +589,13 @@ void usb_sg_cancel(struct usb_sg_request *io) int i, retval; spin_lock_irqsave(&io->lock, flags); - if (io->status) { + if (io->status || io->count == 0) { spin_unlock_irqrestore(&io->lock, flags); return; } /* shut everything down */ io->status = -ECONNRESET; + io->count++; /* Keep the request alive until we're done */ spin_unlock_irqrestore(&io->lock, flags); for (i = io->entries - 1; i >= 0; --i) { @@ -608,6 +609,12 @@ void usb_sg_cancel(struct usb_sg_request *io) dev_warn(&io->dev->dev, "%s, unlink --> %d\n", __func__, retval); } + + spin_lock_irqsave(&io->lock, flags); + io->count--; + if (!io->count) + complete(&io->complete); + spin_unlock_irqrestore(&io->lock, flags); } EXPORT_SYMBOL_GPL(usb_sg_cancel); @@ -1137,11 +1144,11 @@ void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr, if (usb_endpoint_out(epaddr)) { ep = dev->ep_out[epnum]; - if (reset_hardware) + if (reset_hardware && epnum != 0) dev->ep_out[epnum] = NULL; } else { ep = dev->ep_in[epnum]; - if (reset_hardware) + if (reset_hardware && epnum != 0) dev->ep_in[epnum] = NULL; } if (ep) { |