firewire: core: Remove card from list of cards when enable fails

Signed-off-by: Petr Vandrovec <petr@vandrovec.name>
After a controller initialization failure, addition of another card got
stuck due to card_list corruption.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

diff --git a/drivers/firewire/fw-card.c b/drivers/firewire/fw-card.c
index 7be2cf3..a5dd7a6 100644 (file)
--- a/drivers/firewire/fw-card.c
+++ b/drivers/firewire/fw-card.c
@@ -412,6 +412,7 @@ fw_card_add(struct fw_card *card,
 {
        u32 *config_rom;
        size_t length;
+       int err;
 
        card->max_receive = max_receive;
        card->link_speed = link_speed;
@@ -422,7 +423,13 @@ fw_card_add(struct fw_card *card,
        list_add_tail(&card->link, &card_list);
        mutex_unlock(&card_mutex);
 
-       return card->driver->enable(card, config_rom, length);
+       err = card->driver->enable(card, config_rom, length);
+       if (err < 0) {
+               mutex_lock(&card_mutex);
+               list_del(&card->link);
+               mutex_unlock(&card_mutex);
+       }
+       return err;
 }
 EXPORT_SYMBOL(fw_card_add);