ALSA: mixer_oss: Remove some incorrect kfree_const() usages

[ Upstream commit 368e4663c557de4a33f321b44e7eeec0a21b2e4e ]

"assigned" and "assigned->name" are allocated in snd_mixer_oss_proc_write()
using kmalloc() and kstrdup(), so there is no point in using kfree_const()
to free these resources.

Switch to the more standard kfree() to free these resources.

This could avoid a memory leak.

Fixes: 454f5ec1d2b7 ("ALSA: mixer: oss: Constify snd_mixer_oss_assign_table definition")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://patch.msgid.link/63ac20f64234b7c9ea87a7fa9baf41e8255852f7.1727374631.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c
index 6a0508093ea6889f888a810641d7ae21b71c2ee0..81af725ea40e5d86a293a9349c30226d27ad9664 100644 (file)
--- a/sound/core/oss/mixer_oss.c
+++ b/sound/core/oss/mixer_oss.c
@@ -901,8 +901,8 @@ static void snd_mixer_oss_slot_free(struct snd_mixer_oss_slot *chn)
        struct slot *p = chn->private_data;
        if (p) {
                if (p->allocated && p->assigned) {
-                       kfree_const(p->assigned->name);
-                       kfree_const(p->assigned);
+                       kfree(p->assigned->name);
+                       kfree(p->assigned);
                }
                kfree(p);
        }