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| author | Ye Bin <yebin10@huawei.com> | 2022-11-10 15:45:39 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2022-11-10 15:28:12 +0100 |
| commit | 9a5523f72bd2b0d66eef3d58810c6eb7b5ffc143 (patch) | |
| tree | 95e0f4d07b7317848f25af774767b70a6aed2915 /sound/hda | |
| parent | ALSA: memalloc: Don't fall back for SG-buffer with IOMMU (diff) | |
| download | linux-9a5523f72bd2b0d66eef3d58810c6eb7b5ffc143.tar.xz linux-9a5523f72bd2b0d66eef3d58810c6eb7b5ffc143.zip | |
ALSA: hda: fix potential memleak in 'add_widget_node'
As 'kobject_add' may allocated memory for 'kobject->name' when return error.
And in this function, if call 'kobject_add' failed didn't free kobject.
So call 'kobject_put' to recycling resources.
Signed-off-by: Ye Bin <yebin10@huawei.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20221110144539.2989354-1-yebin@huaweicloud.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/hda')
| -rw-r--r-- | sound/hda/hdac_sysfs.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sound/hda/hdac_sysfs.c b/sound/hda/hdac_sysfs.c index e47de49a32e3..62a9615dcf52 100644 --- a/sound/hda/hdac_sysfs.c +++ b/sound/hda/hdac_sysfs.c @@ -346,8 +346,10 @@ static int add_widget_node(struct kobject *parent, hda_nid_t nid, return -ENOMEM; kobject_init(kobj, &widget_ktype); err = kobject_add(kobj, parent, "%02x", nid); - if (err < 0) + if (err < 0) { + kobject_put(kobj); return err; + } err = sysfs_create_group(kobj, group); if (err < 0) { kobject_put(kobj); |