diff options
| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2024-01-20 10:42:12 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2024-01-22 13:04:22 +0100 |
| commit | 1ac1b4b79bf51edcf4f25a1980334bd467880e7d (patch) | |
| tree | ebc22722dec4e8aa8a48dfabbdd59073e0d0de01 | |
| parent | 1513664f340289cf10402753110f3cff12a738aa (diff) | |
ALSA: synth: Save a few bytes of memory when registering a 'snd_emux'
snd_emux_register() calls pass a string literal as the 'name' parameter.
So kstrdup_const() can be used instead of kfree() to avoid a memory
allocation in such cases.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/9e7b94c852a25ed4be5382e5e48a7dd77e8d4d1a.1705743706.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | include/sound/emux_synth.h | 2 | ||||
| -rw-r--r-- | sound/synth/emux/emux.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/include/sound/emux_synth.h b/include/sound/emux_synth.h index 1cc530434b97..3f7f365ed248 100644 --- a/include/sound/emux_synth.h +++ b/include/sound/emux_synth.h @@ -103,7 +103,7 @@ struct snd_emux { int ports[SNDRV_EMUX_MAX_PORTS]; /* The ports for this device */ struct snd_emux_port *portptrs[SNDRV_EMUX_MAX_PORTS]; int used; /* use counter */ - char *name; /* name of the device (internal) */ + const char *name; /* name of the device (internal) */ struct snd_rawmidi **vmidi; struct timer_list tlist; /* for pending note-offs */ int timer_active; diff --git a/sound/synth/emux/emux.c b/sound/synth/emux/emux.c index 0006c3ddb51d..a82af9374852 100644 --- a/sound/synth/emux/emux.c +++ b/sound/synth/emux/emux.c @@ -85,7 +85,7 @@ int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, ch return -EINVAL; emu->card = card; - emu->name = kstrdup(name, GFP_KERNEL); + emu->name = kstrdup_const(name, GFP_KERNEL); emu->voices = kcalloc(emu->max_voices, sizeof(struct snd_emux_voice), GFP_KERNEL); if (emu->name == NULL || emu->voices == NULL) @@ -140,7 +140,7 @@ int snd_emux_free(struct snd_emux *emu) snd_emux_delete_hwdep(emu); snd_sf_free(emu->sflist); kfree(emu->voices); - kfree(emu->name); + kfree_const(emu->name); kfree(emu); return 0; } |