ALSA: hda: cs35l41: fix double free on error in probe()

If we encounter an error after the kfree(acpi_hw_cfg); then the goto
err; will result in a double free.

Fixes: 6c4ddfa8b93f ("ALSA: hda: cs35l41: Add support for CS35L41 in HDA systems")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20220111072232.GG11243@kili
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c
index aa5bb6977792c4268ed0f17425667a21b0256e2b..30b40d865863f0a3c2b54079d70df8e5f38317df 100644 (file)
--- a/sound/pci/hda/cs35l41_hda.c
+++ b/sound/pci/hda/cs35l41_hda.c
@@ -477,6 +477,7 @@ int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int i
        if (ret)
                goto err;
        kfree(acpi_hw_cfg);
+       acpi_hw_cfg = NULL;
 
        if (cs35l41->reg_seq->probe) {
                ret = regmap_register_patch(cs35l41->regmap, cs35l41->reg_seq->probe,