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| author | Takashi Iwai <tiwai@suse.de> | 2019-08-21 20:00:02 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-23 08:18:35 +0100 |
| commit | 03a630fc2e5c7964ffc124dd4f094edb5722af3c (patch) | |
| tree | 794a5b449358cc090f294e009c29024c9a6ce608 /sound/usb | |
| parent | 81b83ca3e45b83e632b8063cd27bdb072ecfc135 (diff) | |
| download | linux-stable-03a630fc2e5c7964ffc124dd4f094edb5722af3c.tar.gz linux-stable-03a630fc2e5c7964ffc124dd4f094edb5722af3c.tar.bz2 linux-stable-03a630fc2e5c7964ffc124dd4f094edb5722af3c.zip | |
ALSA: line6: Fix memory leak at line6_init_pcm() error path
commit 1bc8d18c75fef3b478dbdfef722aae09e2a9fde7 upstream.
I forgot to release the allocated object at the early error path in
line6_init_pcm(). For addressing it, slightly shuffle the code so
that the PCM destructor (pcm->private_free) is assigned properly
before all error paths.
Fixes: 3450121997ce ("ALSA: line6: Fix write on zero-sized buffer")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
[bwh: Backported to 4.4: adjust context]
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/line6/pcm.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/sound/usb/line6/pcm.c b/sound/usb/line6/pcm.c index a531881b2be6..e85ada14a8e1 100644 --- a/sound/usb/line6/pcm.c +++ b/sound/usb/line6/pcm.c @@ -523,6 +523,15 @@ int line6_init_pcm(struct usb_line6 *line6, line6pcm->volume_monitor = 255; line6pcm->line6 = line6; + spin_lock_init(&line6pcm->out.lock); + spin_lock_init(&line6pcm->in.lock); + line6pcm->impulse_period = LINE6_IMPULSE_DEFAULT_PERIOD; + + line6->line6pcm = line6pcm; + + pcm->private_data = line6pcm; + pcm->private_free = line6_cleanup_pcm; + /* Read and write buffers are sized identically, so choose minimum */ line6pcm->max_packet_size = min( usb_maxpacket(line6->usbdev, @@ -535,15 +544,6 @@ int line6_init_pcm(struct usb_line6 *line6, return -EINVAL; } - spin_lock_init(&line6pcm->out.lock); - spin_lock_init(&line6pcm->in.lock); - line6pcm->impulse_period = LINE6_IMPULSE_DEFAULT_PERIOD; - - line6->line6pcm = line6pcm; - - pcm->private_data = line6pcm; - pcm->private_free = line6_cleanup_pcm; - err = line6_create_audio_out_urbs(line6pcm); if (err < 0) return err; |