ALSA: core: Make snd_card_disconnect() return void

All callers from other files ignore the return value of this function.
And it can only ever return a non-zero value if the parameter card is NULL.

Move the check for card being NULL into snd_card_free_when_closed() to keep
the previous behaviour. Note this isn't necessary for
snd_card_disconnect_sync() because if card was NULL in there the dereference
of card for dev_err() would oops the kernel. Replace this by an oops
triggered by the dereference of card for spin_lock_irq().

Signed-off-by: Uwe Kleine-König <[email protected]>
Reviewed-by: Jaroslav Kysela <[email protected]>
Reviewed-by: Takashi Sakamoto <[email protected]>
Acked-by: Geoff Levand <[email protected]>
Acked-by: Thierry Reding <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>

0 files changed, 0 insertions, 0 deletions