ALSA: ice1712: replace strcpy() with strlcpy()

Replace unsafe usages of strcpy() to copy the name
argument into the sid.name buffer with strlcpy()
to guard against possible buffer overflows.

Signed-off-by: Joey Pabalinas <[email protected]>
Suggested-by: Andy Shevchenko <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>

Author: alyptik

sound/pci/ice1712/juli.c

@@ -27,6 +27,7 @@
 #include <linux/interrupt.h>
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/string.h>
 #include <sound/core.h>
 #include <sound/tlv.h>
 
@@ -425,10 +426,9 @@ DECLARE_TLV_DB_SCALE(juli_master_db_scale, -6350, 50, 1);
 static struct snd_kcontrol *ctl_find(struct snd_card *card,
 				     const char *name)
 {
-	struct snd_ctl_elem_id sid;
-	memset(&sid, 0, sizeof(sid));
-	/* FIXME: strcpy is bad. */
-	strcpy(sid.name, name);
+	struct snd_ctl_elem_id sid = {0};
+
+	strlcpy(sid.name, name, sizeof(sid.name));
 	sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 	return snd_ctl_find_id(card, &sid);
 }

sound/pci/ice1712/quartet.c

@@ -26,6 +26,7 @@
 #include <linux/interrupt.h>
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/string.h>
 #include <sound/core.h>
 #include <sound/tlv.h>
 #include <sound/info.h>
@@ -785,10 +786,9 @@ DECLARE_TLV_DB_SCALE(qtet_master_db_scale, -6350, 50, 1);
 static struct snd_kcontrol *ctl_find(struct snd_card *card,
 				     const char *name)
 {
-	struct snd_ctl_elem_id sid;
-	memset(&sid, 0, sizeof(sid));
-	/* FIXME: strcpy is bad. */
-	strcpy(sid.name, name);
+	struct snd_ctl_elem_id sid = {0};
+
+	strlcpy(sid.name, name, sizeof(sid.name));
 	sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 	return snd_ctl_find_id(card, &sid);
 }