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Date: Sun, 1 Feb 2009 11:21:55 +0100 (CET)
From: Stefan Richter <stefanr@...6.in-berlin.de>
To: linux1394-devel@...ts.sourceforge.net
cc: linux-kernel@...r.kernel.org, Petr Vandrovec <petr@...drovec.name>
Subject: Re: [Bug 12592] New: fw_card_add adds card to the list even on enable
failure
Date: Sun, 1 Feb 2009 01:29:35 -0800 (PST)
From: Petr Vandrovec <petr@...drovec.name>
Subject: firewire: core: Remove card from list of cards when enable fails
Signed-off-by: Petr Vandrovec <petr@...drovec.name>
After a controller initialization failure, addition of another card got
stuck due to card_list corruption.
Signed-off-by: Stefan Richter <stefanr@...6.in-berlin.de>
---
drivers/firewire/fw-card.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
Index: linux/drivers/firewire/fw-card.c
===================================================================
--- linux.orig/drivers/firewire/fw-card.c
+++ linux/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);
--
Stefan Richter
-=====-==--= --=- ----=
http://arcgraph.de/sr/
--
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