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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 03:22:58 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 03:22:58 +0000 |
| commit | e5e4452190fd42838db4b11912bd8cd03fa61e08 (patch) | |
| tree | 374214b3170254d7666dd99241b14417b54983c2 /drivers/usb/class | |
| parent | Releasing progress-linux version 6.1.82-1progress7u1. (diff) | |
| download | linux-e5e4452190fd42838db4b11912bd8cd03fa61e08.tar.xz linux-e5e4452190fd42838db4b11912bd8cd03fa61e08.zip | |
Merging upstream version 6.1.85.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/usb/class')
| -rw-r--r-- | drivers/usb/class/cdc-wdm.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 1f0951be1..fdc1a66b1 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -485,6 +485,7 @@ out_free_mem: static int service_outstanding_interrupt(struct wdm_device *desc) { int rv = 0; + int used; /* submit read urb only if the device is waiting for it */ if (!desc->resp_count || !--desc->resp_count) @@ -499,7 +500,10 @@ static int service_outstanding_interrupt(struct wdm_device *desc) goto out; } - set_bit(WDM_RESPONDING, &desc->flags); + used = test_and_set_bit(WDM_RESPONDING, &desc->flags); + if (used) + goto out; + spin_unlock_irq(&desc->iuspin); rv = usb_submit_urb(desc->response, GFP_KERNEL); spin_lock_irq(&desc->iuspin); |