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| author | Janne Grunau <j@jannau.net> | 2009-09-02 00:23:09 +0200 |
|---|---|---|
| committer | Janne Grunau <j@jannau.net> | 2009-09-02 00:23:09 +0200 |
| commit | 39c7c8c56d56cc3a3fd5128d0598944303a929df (patch) | |
| tree | ddb66cd48e6419659dbd4ab12c6ba81992aff53a /linux/firmware/ttusb-budget | |
| parent | 3218818d07892e9fd082cf1b3165164eae279bb5 (diff) | |
| download | mediapointer-dvb-s2-39c7c8c56d56cc3a3fd5128d0598944303a929df.tar.gz mediapointer-dvb-s2-39c7c8c56d56cc3a3fd5128d0598944303a929df.tar.bz2 | |
dvb-core: check fe->ops.set_frontend return value
From: Janne Grunau <j@jannau.net>
Various frontend driver have parameter checks in their set_frontend
functions and return an error if the parameters are not supported,
tda10021 and cx24116 to name two.
The tuning ioctls FE_SET_FRONTEND/FE_SET_PROPERTY only change values
in the property cache and return before set_frontend is called. If a
set_frontend call in software zigzag algorithm fails and the card was
previously locked it will report a lock and the new parameters but is
still tuned to the old transport. This is not detectable from
userspace.
This change checks the return values of fe->ops.set_frontend and
changes the state to the added FESTATE_ERROR for software zigzag.
No lock will be reported to userspace if the State is FESTATE_ERROR.
Priority: normal
Signed-off-by: Janne Grunau <j@jannau.net>
Diffstat (limited to 'linux/firmware/ttusb-budget')
0 files changed, 0 insertions, 0 deletions