virtio_console: eliminate anonymous module_init & module_exit

[ Upstream commit fefb8a2a941338d871e2d83fbd65fbfa068857bd ]

Eliminate anonymous module_init() and module_exit(), which can lead to
confusion or ambiguity when reading System.map, crashes/oops/bugs,
or an initcall_debug log.

Give each of these init and exit functions unique driver-specific
names to eliminate the anonymous names.

Example 1: (System.map)
 ffffffff832fc78c t init
 ffffffff832fc79e t init
 ffffffff832fc8f8 t init

Example 2: (initcall_debug log)
 calling  init+0x0/0x12 @ 1
 initcall init+0x0/0x12 returned 0 after 15 usecs
 calling  init+0x0/0x60 @ 1
 initcall init+0x0/0x60 returned 0 after 2 usecs
 calling  init+0x0/0x9a @ 1
 initcall init+0x0/0x9a returned 0 after 74 usecs

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Amit Shah <amit@kernel.org>
Cc: virtualization@lists.linux-foundation.org
Cc: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20220316192010.19001-3-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 3adf047..77bc993 100644 (file)
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -2236,7 +2236,7 @@ static struct virtio_driver virtio_rproc_serial = {
        .remove =       virtcons_remove,
 };
 
-static int __init init(void)
+static int __init virtio_console_init(void)
 {
        int err;
 
@@ -2271,7 +2271,7 @@ free:
        return err;
 }
 
-static void __exit fini(void)
+static void __exit virtio_console_fini(void)
 {
        reclaim_dma_bufs();
 
@@ -2281,8 +2281,8 @@ static void __exit fini(void)
        class_destroy(pdrvdata.class);
        debugfs_remove_recursive(pdrvdata.debugfs_dir);
 }
-module_init(init);
-module_exit(fini);
+module_init(virtio_console_init);
+module_exit(virtio_console_fini);
 
 MODULE_DESCRIPTION("Virtio console driver");
 MODULE_LICENSE("GPL");