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path: root/drivers/char/pcmcia
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Diffstat (limited to 'drivers/char/pcmcia')
-rw-r--r--drivers/char/pcmcia/synclink_cs.c51
1 files changed, 41 insertions, 10 deletions
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index b66eaa04f8cb..56e4e940fa19 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -397,7 +397,7 @@ static int adapter_test(MGSLPC_INFO *info);
static int claim_resources(MGSLPC_INFO *info);
static void release_resources(MGSLPC_INFO *info);
-static void mgslpc_add_device(MGSLPC_INFO *info);
+static int mgslpc_add_device(MGSLPC_INFO *info);
static void mgslpc_remove_device(MGSLPC_INFO *info);
static bool rx_get_frame(MGSLPC_INFO *info, struct tty_struct *tty);
@@ -549,14 +549,21 @@ static int mgslpc_probe(struct pcmcia_device *link)
/* Initialize the struct pcmcia_device structure */
ret = mgslpc_config(link);
- if (ret) {
- tty_port_destroy(&info->port);
- return ret;
- }
+ if (ret != 0)
+ goto failed;
- mgslpc_add_device(info);
+ ret = mgslpc_add_device(info);
+ if (ret != 0)
+ goto failed_release;
return 0;
+
+failed_release:
+ mgslpc_release((u_long)link);
+failed:
+ tty_port_destroy(&info->port);
+ kfree(info);
+ return ret;
}
/* Card has been inserted.
@@ -2706,8 +2713,12 @@ static void release_resources(MGSLPC_INFO *info)
*
* Arguments: info pointer to device instance data
*/
-static void mgslpc_add_device(MGSLPC_INFO *info)
+static int mgslpc_add_device(MGSLPC_INFO *info)
{
+ MGSLPC_INFO *current_dev = NULL;
+ struct device *tty_dev;
+ int ret;
+
info->next_device = NULL;
info->line = mgslpc_device_count;
sprintf(info->device_name,"ttySLP%d",info->line);
@@ -2722,7 +2733,7 @@ static void mgslpc_add_device(MGSLPC_INFO *info)
if (!mgslpc_device_list)
mgslpc_device_list = info;
else {
- MGSLPC_INFO *current_dev = mgslpc_device_list;
+ current_dev = mgslpc_device_list;
while( current_dev->next_device )
current_dev = current_dev->next_device;
current_dev->next_device = info;
@@ -2737,10 +2748,30 @@ static void mgslpc_add_device(MGSLPC_INFO *info)
info->device_name, info->io_base, info->irq_level);
#if SYNCLINK_GENERIC_HDLC
- hdlcdev_init(info);
+ ret = hdlcdev_init(info);
+ if (ret != 0)
+ goto failed;
#endif
- tty_port_register_device(&info->port, serial_driver, info->line,
+
+ tty_dev = tty_port_register_device(&info->port, serial_driver, info->line,
&info->p_dev->dev);
+ if (IS_ERR(tty_dev)) {
+ ret = PTR_ERR(tty_dev);
+#if SYNCLINK_GENERIC_HDLC
+ hdlcdev_exit(info);
+#endif
+ goto failed;
+ }
+
+ return 0;
+
+failed:
+ if (current_dev)
+ current_dev->next_device = NULL;
+ else
+ mgslpc_device_list = NULL;
+ mgslpc_device_count--;
+ return ret;
}
static void mgslpc_remove_device(MGSLPC_INFO *remove_info)