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| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-04-27 09:34:55 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-04-27 09:34:55 +0200 |
| commit | 96fa72ffb2155dba9ba8c5d282a1ff19ed32f177 (patch) | |
| tree | 97e3dad8795e54405d450315363d7006bc2c2e35 /drivers/usb/core/message.c | |
| parent | Add documentation on meaning of -EPROBE_DEFER (diff) | |
| parent | Linux 5.7-rc3 (diff) | |
| download | wireguard-linux-96fa72ffb2155dba9ba8c5d282a1ff19ed32f177.tar.xz wireguard-linux-96fa72ffb2155dba9ba8c5d282a1ff19ed32f177.zip | |
Merge 5.7-rc3 into driver-core-next
We need the driver core fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core/message.c')
| -rw-r--r-- | drivers/usb/core/message.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index d5f834f16993..a48678a0c83a 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); |