/* If flip is full, just reschedule a later read */
if (count == 0) {
poll_mask |= HVC_POLL_READ;
shouldn't be deleting the declaration of count.
and possibly the "flip removal" was incomplete (line 636) ???
Yep. You can remove the tty->flip.count test or use count, but at that
point count is guaranteed to be > 0 I believe. Fixed both in my tree will
push a new diff to Andre soon.
There are at least a couple other spots where flip got missed, after
fixing the count and flip problem mentioned these come up:
drivers/char/hvcs.c:459: error: structure has no member named `flip'
drivers/char/hvcs.c:472: error: structure has no member named `flip'
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