ALSA: ctxfi - Check the presence of SRC instance in PCM pointer callbacks
The SRC instances may not exist when PCM pointer callback is called at
the state before initialization is finished. Add the NULL check just
to be sure.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/ctxfi/ctatc.c b/sound/pci/ctxfi/ctatc.c
index 799eb98..e54006e 100644
--- a/sound/pci/ctxfi/ctatc.c
+++ b/sound/pci/ctxfi/ctatc.c
@@ -445,6 +445,8 @@
u32 size, max_cisz;
int position;
+ if (!src)
+ return 0;
position = src->ops->get_ca(src);
size = apcm->vm_block->size;
@@ -782,6 +784,8 @@
{
struct src *src = apcm->src;
+ if (!src)
+ return 0;
return src->ops->get_ca(src) - apcm->vm_block->addr;
}
