Messages in this thread Patch in this message | | | From | Luis Chamberlain <> | Subject | [PATCH 06/10] block/rsxx: add error handling support for add_disk() | Date | Wed, 1 Sep 2021 14:00:24 -0700 |
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We never checked for errors on add_disk() as this function returned void. Now that this is fixed, use the shiny new error handling.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> --- drivers/block/rsxx/core.c | 4 +++- drivers/block/rsxx/dev.c | 12 +++++++++--- 2 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/block/rsxx/core.c b/drivers/block/rsxx/core.c index 83636714b8d7..8d9d69f5dfbc 100644 --- a/drivers/block/rsxx/core.c +++ b/drivers/block/rsxx/core.c @@ -935,7 +935,9 @@ static int rsxx_pci_probe(struct pci_dev *dev, card->size8 = 0; } - rsxx_attach_dev(card); + st = rsxx_attach_dev(card); + if (st) + goto failed_create_dev; /************* Setup Debugfs *************/ rsxx_debugfs_dev_new(card); diff --git a/drivers/block/rsxx/dev.c b/drivers/block/rsxx/dev.c index 1cc40b0ea761..b2d3ac3efce2 100644 --- a/drivers/block/rsxx/dev.c +++ b/drivers/block/rsxx/dev.c @@ -192,6 +192,8 @@ static bool rsxx_discard_supported(struct rsxx_cardinfo *card) int rsxx_attach_dev(struct rsxx_cardinfo *card) { + int err = 0; + mutex_lock(&card->dev_lock); /* The block device requires the stripe size from the config. */ @@ -200,13 +202,17 @@ int rsxx_attach_dev(struct rsxx_cardinfo *card) set_capacity(card->gendisk, card->size8 >> 9); else set_capacity(card->gendisk, 0); - device_add_disk(CARD_TO_DEV(card), card->gendisk, NULL); - card->bdev_attached = 1; + err = device_add_disk(CARD_TO_DEV(card), card->gendisk, NULL); + if (err == 0) + card->bdev_attached = 1; } mutex_unlock(&card->dev_lock); - return 0; + if (err) + blk_cleanup_disk(card->gendisk); + + return err; } void rsxx_detach_dev(struct rsxx_cardinfo *card) -- 2.30.2
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