diff options
| author | Dinghao Liu <dinghao.liu@zju.edu.cn> | 2020-08-13 15:46:30 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-21 13:07:42 +0200 |
| commit | 4e4dd9ae19f61179fd40f3cd9f156c34a3d2d202 (patch) | |
| tree | cac678f95a27250b334a7cbac698cf49d975ccc7 | |
| parent | d54df8d8a84321238e6f8557dd32a1b0eef8aa5c (diff) | |
ALSA: echoaudio: Fix potential Oops in snd_echo_resume()
[ Upstream commit 5a25de6df789cc805a9b8ba7ab5deef5067af47e ]
Freeing chip on error may lead to an Oops at the next time
the system goes to resume. Fix this by removing all
snd_echo_free() calls on error.
Fixes: 47b5d028fdce8 ("ALSA: Echoaudio - Add suspend support #2")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Link: https://lore.kernel.org/r/20200813074632.17022-1-dinghao.liu@zju.edu.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | sound/pci/echoaudio/echoaudio.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c index 0941a7a17623..456219a665a7 100644 --- a/sound/pci/echoaudio/echoaudio.c +++ b/sound/pci/echoaudio/echoaudio.c @@ -2158,7 +2158,6 @@ static int snd_echo_resume(struct device *dev) if (err < 0) { kfree(commpage_bak); dev_err(dev, "resume init_hw err=%d\n", err); - snd_echo_free(chip); return err; } @@ -2185,7 +2184,6 @@ static int snd_echo_resume(struct device *dev) if (request_irq(pci->irq, snd_echo_interrupt, IRQF_SHARED, KBUILD_MODNAME, chip)) { dev_err(chip->card->dev, "cannot grab irq\n"); - snd_echo_free(chip); return -EBUSY; } chip->irq = pci->irq; |