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[PATCH] pcmcia: au1000_generic fix 

The previous code did something like,

if (error) goto out_err;
....
do {
             struct au1000_pcmcia_socket *skt = PCMCIA_SOCKET(i);
              del_timer_sync(&skt->poll_timer);
               pcmcia_unregister_socket(&skt->socket);
out_err:
               flush_scheduled_work();
               ops->hw_shutdown(skt);
               i--;
} while (i > 0)
.....

- On the error path, skt would not contain a valid value for the first
  iteration (skt is masked by uninitialized automatic skt)

- Does not do hw_shutdown() for 0th element of PCMCIA_SOCKET

Signed-off-by: Om Narasimhan <om.turyx@gmail.com>
Cc: "Yoichi Yuasa" <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
This commit is contained in:
Om Narasimhan 2006-10-20 14:44:15 -07:00 committed by Dominik Brodowski
parent f465ce176f
commit a230a6785d
1 changed files with 9 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/pcmcia/au1000_generic.c
View File

@ -351,6 +351,7 @@ struct skt_dev_info {
int au1x00_pcmcia_socket_probe(struct device *dev, struct pcmcia_low_level *ops, int first, int nr)
{
struct skt_dev_info *sinfo;
struct au1000_pcmcia_socket *skt;
int ret, i;
sinfo = kzalloc(sizeof(struct skt_dev_info), GFP_KERNEL);
@ -365,7 +366,7 @@ int au1x00_pcmcia_socket_probe(struct device *dev, struct pcmcia_low_level *ops,
* Initialise the per-socket structure.
*/
for (i = 0; i < nr; i++) {
struct au1000_pcmcia_socket *skt = PCMCIA_SOCKET(i);
skt = PCMCIA_SOCKET(i);
memset(skt, 0, sizeof(*skt));
skt->socket.resource_ops = &pccard_static_ops;
@ -438,17 +439,19 @@ int au1x00_pcmcia_socket_probe(struct device *dev, struct pcmcia_low_level *ops,
dev_set_drvdata(dev, sinfo);
return 0;
do {
struct au1000_pcmcia_socket *skt = PCMCIA_SOCKET(i);
del_timer_sync(&skt->poll_timer);
pcmcia_unregister_socket(&skt->socket);
out_err:
flush_scheduled_work();
ops->hw_shutdown(skt);
while (i-- > 0) {
skt = PCMCIA_SOCKET(i);
i--;
} while (i > 0);
del_timer_sync(&skt->poll_timer);
pcmcia_unregister_socket(&skt->socket);
flush_scheduled_work();
ops->hw_shutdown(skt);
}
kfree(sinfo);
out:
return ret;