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authorPaul Fulghum <paulkf@microgate.com>2005-09-10 00:26:07 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-10 10:06:22 -0700
commita7482a2e7775d163aecd8c95af7bb1b8c83890cc (patch)
tree5ab3ff644fc670ab68f5d2dd2fa81d92bdf0a6f4 /drivers/char/pcmcia
parent4247bdc60048018b98f71228b45cfbc5f5270c86 (diff)
[PATCH] synclink_cs add statistics clear
Add ability to clear statistics. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/char/pcmcia')
-rw-r--r--drivers/char/pcmcia/synclink_cs.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 7a0c7464812..02d7f046c10 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -1,7 +1,7 @@
/*
* linux/drivers/char/pcmcia/synclink_cs.c
*
- * $Id: synclink_cs.c,v 4.26 2004/08/11 19:30:02 paulkf Exp $
+ * $Id: synclink_cs.c,v 4.34 2005/09/08 13:20:54 paulkf Exp $
*
* Device driver for Microgate SyncLink PC Card
* multiprotocol serial adapter.
@@ -472,7 +472,7 @@ module_param_array(dosyncppp, int, NULL, 0);
MODULE_LICENSE("GPL");
static char *driver_name = "SyncLink PC Card driver";
-static char *driver_version = "$Revision: 4.26 $";
+static char *driver_version = "$Revision: 4.34 $";
static struct tty_driver *serial_driver;
@@ -1457,6 +1457,8 @@ static int startup(MGSLPC_INFO * info)
info->pending_bh = 0;
+ memset(&info->icount, 0, sizeof(info->icount));
+
init_timer(&info->tx_timer);
info->tx_timer.data = (unsigned long)info;
info->tx_timer.function = tx_timeout;
@@ -1946,9 +1948,13 @@ static int get_stats(MGSLPC_INFO * info, struct mgsl_icount __user *user_icount)
int err;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("get_params(%s)\n", info->device_name);
- COPY_TO_USER(err,user_icount, &info->icount, sizeof(struct mgsl_icount));
- if (err)
- return -EFAULT;
+ if (!user_icount) {
+ memset(&info->icount, 0, sizeof(info->icount));
+ } else {
+ COPY_TO_USER(err, user_icount, &info->icount, sizeof(struct mgsl_icount));
+ if (err)
+ return -EFAULT;
+ }
return 0;
}