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

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>

diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index 9d8b9c1..f0630a6 100644 (file)
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -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);