5.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Murad Masimov <m.masimov@xxxxxxxxx>
[ Upstream commit 8abbf1f01d6a2ef9f911f793e30f7382154b5a3a ]
If amdtp_stream_init() fails in amdtp_tscm_init(), the latter returns zero,
though it's supposed to return error code, which is checked inside
init_stream() in file tascam-stream.c.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 47faeea25ef3 ("ALSA: firewire-tascam: add data block processing layer")
Signed-off-by: Murad Masimov <m.masimov@xxxxxxxxx>
Reviewed-by: Takashi Sakamoto <o-takashi@xxxxxxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Link: https://patch.msgid.link/20241101185517.1819-1-m.masimov@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
sound/firewire/tascam/amdtp-tascam.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/firewire/tascam/amdtp-tascam.c b/sound/firewire/tascam/amdtp-tascam.c
index f823a2ab3544b..8ffc065b77f95 100644
--- a/sound/firewire/tascam/amdtp-tascam.c
+++ b/sound/firewire/tascam/amdtp-tascam.c
@@ -244,7 +244,7 @@ int amdtp_tscm_init(struct amdtp_stream *s, struct fw_unit *unit,
CIP_NONBLOCKING | CIP_SKIP_DBC_ZERO_CHECK, fmt,
process_ctx_payloads, sizeof(struct amdtp_tscm));
if (err < 0)
- return 0;
+ return err;
if (dir == AMDTP_OUT_STREAM) {
// Use fixed value for FDF field.
--
2.43.0
