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| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-05 08:03:23 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-05 08:03:23 +0200 |
| commit | a956f91247da3fe71e4d5f7da1f6dd8bae7c3c21 (patch) | |
| tree | dcbfa79369938f1349af5b39a68dee698861a815 /drivers/usb/core | |
| parent | USB: hcd-pci: Drop the unused id parameter from usb_hcd_pci_probe() (diff) | |
| parent | Linux 6.0-rc4 (diff) | |
| download | linux-dev-a956f91247da3fe71e4d5f7da1f6dd8bae7c3c21.tar.xz linux-dev-a956f91247da3fe71e4d5f7da1f6dd8bae7c3c21.zip | |
Merge 6.0-rc4 into usb-next
We need the USB fixes in here and this resolves the merge issue in:
drivers/usb/dwc3/gadget.c
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core')
| -rw-r--r-- | drivers/usb/core/hub.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 2633acde7ac1..d4b1e70d1498 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -6038,6 +6038,11 @@ re_enumerate: * the reset is over (using their post_reset method). * * Return: The same as for usb_reset_and_verify_device(). + * However, if a reset is already in progress (for instance, if a + * driver doesn't have pre_ or post_reset() callbacks, and while + * being unbound or re-bound during the ongoing reset its disconnect() + * or probe() routine tries to perform a second, nested reset), the + * routine returns -EINPROGRESS. * * Note: * The caller must own the device lock. For example, it's safe to use @@ -6071,6 +6076,10 @@ int usb_reset_device(struct usb_device *udev) return -EISDIR; } + if (udev->reset_in_progress) + return -EINPROGRESS; + udev->reset_in_progress = 1; + port_dev = hub->ports[udev->portnum - 1]; /* @@ -6135,6 +6144,7 @@ int usb_reset_device(struct usb_device *udev) usb_autosuspend_device(udev); memalloc_noio_restore(noio_flag); + udev->reset_in_progress = 0; return ret; } EXPORT_SYMBOL_GPL(usb_reset_device); |