media: radio-isa: use dev_name to fill in bus_info

This fixes this warning:

drivers/media/radio/radio-isa.c: In function 'radio_isa_querycap':
drivers/media/radio/radio-isa.c:39:57: warning: '%s' directive output may be truncated writing up to 35 bytes into a region of size 28 [-Wformat-truncation=]
39 | snprintf(v->bus_info, sizeof(v->bus_info), "ISA:%s", isa->v4l2_dev.name);
| ^~
drivers/media/radio/radio-isa.c:39:9: note: 'snprintf' output between 5 and 40 bytes into a destination of size 32
39 | snprintf(v->bus_info, sizeof(v->bus_info), "ISA:%s", isa->v4l2_dev.name);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Hans Verkuil <[e-mail]>

drivers/media/radio/radio-isa.c

···
 
 	strscpy(v->driver, isa->drv->driver.driver.name, sizeof(v->driver));
 	strscpy(v->card, isa->drv->card, sizeof(v->card));
-	snprintf(v->bus_info, sizeof(v->bus_info), "ISA:%s", isa->v4l2_dev.name);
+	snprintf(v->bus_info, sizeof(v->bus_info), "ISA:%s", dev_name(isa->v4l2_dev.dev));
 	return 0;
 }