From: Krzysztof Helt krzysztof.h1@wp.pl
If a hardware is not detected there is a kernel crash due to not initialized snd_miro->aci pointer. This pointer is initialized after detection of the opti (miro) chip.
This bug was introduced by patches to expose ACI mikser outside the snd-miro driver.
Signed-off-by: Krzysztof Helt krzysztof.h1@wp.pl ---
sound/isa/opti9xx/miro.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/sound/isa/opti9xx/miro.c b/sound/isa/opti9xx/miro.c index 40b64cd..e374869 100644 --- a/sound/isa/opti9xx/miro.c +++ b/sound/isa/opti9xx/miro.c @@ -1229,7 +1229,8 @@ static void snd_card_miro_free(struct snd_card *card) struct snd_miro *miro = card->private_data;
release_and_free_resource(miro->res_aci_port); - miro->aci->aci_port = 0; + if (miro->aci) + miro->aci->aci_port = 0; release_and_free_resource(miro->res_mc_base); }