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| author | Henrique de Moraes Holschuh <hmh@hmh.eng.br> | 2008-08-02 15:10:59 -0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-08-22 16:29:57 -0400 |
| commit | 77fba13ccc3a2a3db100892a4a6cc5e2f8290cc7 (patch) | |
| tree | 326794992d81c2372f6a639df798e3361dcb4610 /net/rfkill | |
| parent | 9961920199ec88d6b581d3e38502088935925c04 (diff) | |
| download | linux-stable-77fba13ccc3a2a3db100892a4a6cc5e2f8290cc7.tar.gz linux-stable-77fba13ccc3a2a3db100892a4a6cc5e2f8290cc7.tar.bz2 linux-stable-77fba13ccc3a2a3db100892a4a6cc5e2f8290cc7.zip | |
rfkill: add __must_check annotations
rfkill is not a small, mere detail in wireless support. Once it starts
supporting rfkill and users start counting on that support, a wireless
device is at risk of operating in dangerous conditions should rfkill
support fail to properly activate.
Therefore, add the required __must_check annotations on some key functions
of the rfkill API, for which the wireless drivers absolutely MUST handle
the failure mode safely in order to avoid a potentially dangerous situation
where the wireless transmitter is left enabled when the user don't want it
to.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/rfkill')
| -rw-r--r-- | net/rfkill/rfkill.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/rfkill/rfkill.c b/net/rfkill/rfkill.c index b995fa32cf84..fae7ffade9c9 100644 --- a/net/rfkill/rfkill.c +++ b/net/rfkill/rfkill.c @@ -645,7 +645,8 @@ static void rfkill_remove_switch(struct rfkill *rfkill) * NOTE: If registration fails the structure shoudl be freed by calling * rfkill_free() otherwise rfkill_unregister() should be used. */ -struct rfkill *rfkill_allocate(struct device *parent, enum rfkill_type type) +struct rfkill * __must_check rfkill_allocate(struct device *parent, + enum rfkill_type type) { struct rfkill *rfkill; struct device *dev; @@ -716,7 +717,7 @@ static void rfkill_led_trigger_unregister(struct rfkill *rfkill) * structure needs to be registered. Immediately from registration the * switch driver should be able to service calls to toggle_radio. */ -int rfkill_register(struct rfkill *rfkill) +int __must_check rfkill_register(struct rfkill *rfkill) { static atomic_t rfkill_no = ATOMIC_INIT(0); struct device *dev = &rfkill->dev; |