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pcmcia: do not lock socket driver module in pcmcia_get_socket()

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Do not lock the socket driver module in pcmcia_get_socket(), as
the PCMCIA core can handle a socket module removal: In
pcmcia_unregister_socket(), we explicitely wait for the last
put_device() to succeed.

Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
This commit is contained in:
Dominik Brodowski 2010-01-02 22:59:15 +01:00
parent 3f32b3c093
commit 593f010bc0
1 changed files with 1 additions and 7 deletions
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8
drivers/pcmcia/cs.c
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@ -140,19 +140,13 @@ struct pcmcia_socket *pcmcia_get_socket(struct pcmcia_socket *skt)
struct device *dev = get_device(&skt->dev);
if (!dev)
return NULL;
skt = dev_get_drvdata(dev);
if (!try_module_get(skt->owner)) {
put_device(&skt->dev);
return NULL;
}
return skt;
return dev_get_drvdata(dev);
}
EXPORT_SYMBOL(pcmcia_get_socket);
void pcmcia_put_socket(struct pcmcia_socket *skt)
{
module_put(skt->owner);
put_device(&skt->dev);
}
EXPORT_SYMBOL(pcmcia_put_socket);