Hi Luis,
On Tue, Aug 31, 2021 at 12:10 AM Luis Chamberlain <mcgrof@xxxxxxxxxx> wrote:
We never checked for errors on add_disk() as this function
returned void. Now that this is fixed, use the shiny new
error handling. Only the disk is cleaned up inside
z2ram_register_disk() as the caller deals with the rest.
Signed-off-by: Luis Chamberlain <mcgrof@xxxxxxxxxx>
Thanks for your patch!
--- a/drivers/block/z2ram.c
+++ b/drivers/block/z2ram.c
@@ -318,6 +318,7 @@ static const struct blk_mq_ops z2_mq_ops = {
static int z2ram_register_disk(int minor)
{
struct gendisk *disk;
+ int err;
disk = blk_mq_alloc_disk(&tag_set, NULL);
if (IS_ERR(disk))
@@ -333,8 +334,10 @@ static int z2ram_register_disk(int minor)
sprintf(disk->disk_name, "z2ram");
z2ram_gendisk[minor] = disk;
- add_disk(disk);
- return 0;
+ err = add_disk(disk);
+ if (err)
+ blk_cleaup_disk(disk);
blk_cleanup_disk()?
Seems like lkp already detected this back in July...
+ return err;
}
static int __init z2_init(void)
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
