diff options
| author | Haotian Zhang <vulab@iscas.ac.cn> | 2025-12-15 17:04:33 +0800 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2025-12-15 10:11:19 +0100 |
| commit | 5032347c04ba7ff9ba878f262e075d745c06a2a8 (patch) | |
| tree | f18a968c55810551e2ce9fe750203e95c22f4df9 /sound | |
| parent | 2a03b40deacbd293ac9aed0f9b11197dad54fe5f (diff) | |
ALSA: pcmcia: Fix resource leak in snd_pdacf_probe error path
When pdacf_config() fails, snd_pdacf_probe() returns the error code
directly without freeing the sound card resources allocated by
snd_card_new(), which leads to a memory leak.
Add proper error handling to free the sound card and clear the card
list entry when pdacf_config() fails.
Fixes: 15b99ac17295 ("[PATCH] pcmcia: add return value to _config() functions")
Suggested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Link: https://patch.msgid.link/20251215090433.211-1-vulab@iscas.ac.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pcmcia/pdaudiocf/pdaudiocf.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf.c b/sound/pcmcia/pdaudiocf/pdaudiocf.c index 13419837dfb7..a3291e626440 100644 --- a/sound/pcmcia/pdaudiocf/pdaudiocf.c +++ b/sound/pcmcia/pdaudiocf/pdaudiocf.c @@ -131,7 +131,13 @@ static int snd_pdacf_probe(struct pcmcia_device *link) link->config_index = 1; link->config_regs = PRESENT_OPTION; - return pdacf_config(link); + err = pdacf_config(link); + if (err < 0) { + card_list[i] = NULL; + snd_card_free(card); + return err; + } + return 0; } |