From: Paul Fulghum Date: Fri, 9 Sep 2005 20:02:13 +0000 (-0700) Subject: [PATCH] synclink.c: add clear stats X-Git-Tag: v2.6.14-rc1~445 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9661239f7f698ba3a79db5e8ab5bb2f4090663d9;p=linux-2.6 [PATCH] synclink.c: add clear stats Add the ability to clear statistics. Signed-off-by: Paul Fulghum Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c index 747eb8d181..26b421b74b 100644 --- a/drivers/char/synclink.c +++ b/drivers/char/synclink.c @@ -1814,6 +1814,8 @@ static int startup(struct mgsl_struct * 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 = mgsl_tx_timeout; @@ -2470,12 +2472,12 @@ static int mgsl_get_stats(struct mgsl_struct * info, struct mgsl_icount __user * printk("%s(%d):mgsl_get_params(%s)\n", __FILE__,__LINE__, info->device_name); - COPY_TO_USER(err,user_icount, &info->icount, sizeof(struct mgsl_icount)); - if (err) { - if ( debug_level >= DEBUG_LEVEL_INFO ) - printk( "%s(%d):mgsl_get_stats(%s) user buffer copy failed\n", - __FILE__,__LINE__,info->device_name); - 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;