ALSA: Convert strlcpy to strscpy when return value is unused

strlcpy is deprecated.  see: Documentation/process/deprecated.rst

Change the calls that do not use the strlcpy return value to the
preferred strscpy.

Done with cocci script:

@@
expression e1, e2, e3;
@@

-	strlcpy(
+	strscpy(
	e1, e2, e3);

This cocci script leaves the instances where the return value is
used unchanged.

After this patch, sound/ has 3 uses of strlcpy() that need to be
manually inspected for conversion and changed one day.

$ git grep -w strlcpy sound/
sound/usb/card.c:               len = strlcpy(card->longname, s, sizeof(card->longname));
sound/usb/mixer.c:      return strlcpy(buf, p->name, buflen);
sound/usb/mixer.c:                      return strlcpy(buf, p->names[index], buflen);

Miscellenea:

o Remove trailing whitespace in conversion of sound/core/hwdep.c

Link: https://lore.kernel.org/lkml/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/22b393d1790bb268769d0bab7bacf0866dcb0c14.camel@perches.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

3 files changed, 6 insertions, 6 deletions

diff --git a/sound/pci/emu10k1/emu10k1.c b/sound/pci/emu10k1/emu10k1.c
index 29b7720d7961..353934c88cbd 100644
--- a/sound/pci/emu10k1/emu10k1.c
+++ b/sound/pci/emu10k1/emu10k1.c
@@ -168,9 +168,9 @@ static int snd_card_emu10k1_probe(struct pci_dev *pci,
 	}
 #endif
  
-	strlcpy(card->driver, emu->card_capabilities->driver,
+	strscpy(card->driver, emu->card_capabilities->driver,
 		sizeof(card->driver));
-	strlcpy(card->shortname, emu->card_capabilities->name,
+	strscpy(card->shortname, emu->card_capabilities->name,
 		sizeof(card->shortname));
 	snprintf(card->longname, sizeof(card->longname),
 		 "%s (rev.%d, serial:0x%x) at 0x%lx, irq %i",
diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index bd70e112ffd7..24a2fd706d69 100644
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -1869,7 +1869,7 @@ int snd_emu10k1_create(struct snd_card *card,
 			emu->serial);
 
 	if (!*card->id && c->id)
-		strlcpy(card->id, c->id, sizeof(card->id));
+		strscpy(card->id, c->id, sizeof(card->id));
 
 	is_audigy = emu->audigy = c->emu10k2_chip;
 
diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c
index 4e76ed0e91d5..80ef62a4a7c0 100644
--- a/sound/pci/emu10k1/emufx.c
+++ b/sound/pci/emu10k1/emufx.c
@@ -940,7 +940,7 @@ static int snd_emu10k1_list_controls(struct snd_emu10k1 *emu,
 			memset(gctl, 0, sizeof(*gctl));
 			id = &ctl->kcontrol->id;
 			gctl->id.iface = (__force int)id->iface;
-			strlcpy(gctl->id.name, id->name, sizeof(gctl->id.name));
+			strscpy(gctl->id.name, id->name, sizeof(gctl->id.name));
 			gctl->id.index = id->index;
 			gctl->id.device = id->device;
 			gctl->id.subdevice = id->subdevice;
@@ -976,7 +976,7 @@ static int snd_emu10k1_icode_poke(struct snd_emu10k1 *emu,
 	err = snd_emu10k1_verify_controls(emu, icode, in_kernel);
 	if (err < 0)
 		goto __error;
-	strlcpy(emu->fx8010.name, icode->name, sizeof(emu->fx8010.name));
+	strscpy(emu->fx8010.name, icode->name, sizeof(emu->fx8010.name));
 	/* stop FX processor - this may be dangerous, but it's better to miss
 	   some samples than generate wrong ones - [jk] */
 	if (emu->audigy)
@@ -1015,7 +1015,7 @@ static int snd_emu10k1_icode_peek(struct snd_emu10k1 *emu,
 	int err;
 
 	mutex_lock(&emu->fx8010.lock);
-	strlcpy(icode->name, emu->fx8010.name, sizeof(icode->name));
+	strscpy(icode->name, emu->fx8010.name, sizeof(icode->name));
 	/* ok, do the main job */
 	err = snd_emu10k1_gpr_peek(emu, icode);
 	if (err >= 0)