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| author | Dave Airlie <airlied@redhat.com> | 2016-05-09 13:49:56 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2016-05-09 13:49:56 +1000 |
| commit | bafb86f5bc3173479002555dea7f31d943b12332 (patch) | |
| tree | 6ec94c96460faf782cdb8781339560e13e0918b0 /drivers/usb/class/cdc-acm.c | |
| parent | ba391646d0d43aee3596b616113cce0f22dde627 (diff) | |
| parent | 44549e8f5eea4e0a41b487b63e616cb089922b99 (diff) | |
| download | linux-bafb86f5bc3173479002555dea7f31d943b12332.tar.gz linux-bafb86f5bc3173479002555dea7f31d943b12332.tar.xz | |
Merge tag 'v4.6-rc7' into drm-next
Merge this back as we've built up a fair few conflicts, and I have
some newer trees to pull in.
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 83fd30b0577c..a6c4a1b895bd 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -744,11 +744,15 @@ static void acm_tty_flush_chars(struct tty_struct *tty) int err; unsigned long flags; + if (!cur) /* nothing to do */ + return; + acm->putbuffer = NULL; err = usb_autopm_get_interface_async(acm->control); spin_lock_irqsave(&acm->write_lock, flags); if (err < 0) { cur->use = 0; + acm->putbuffer = cur; goto out; } |