tree 07482a4a9da12f754231598371d0bf5e1f691c66
parent a115902f67ef51fbbe83e214fb761aaa9734c1ce
author Alan Cox <alan@linux.intel.com> 1245692549 +0100
committer Linus Torvalds <torvalds@linux-foundation.org> 1245695544 -0700

ppp: Fix throttling bugs

The ppp layer goes around calling the unthrottle method from non sleeping
paths. This isn't safe because the unthrottle methods in the tty layer need
to be able to sleep (consider a USB dongle).

Until now this didn't show up because the ppp layer never actually throttled
a port so the unthrottle was always a no-op. Currently it's a mutex taking
path so warnings are spewed if the unthrottle occurs via certain paths.

Fix this by removing the unneccessary unthrottle calls.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>