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| author | Paul Fulghum <paulkf@microgate.com> | 2005-09-09 13:02:16 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-09 13:57:34 -0700 |
| commit | 166692e4a045348109f66b493e1b41afde6f3769 (patch) | |
| tree | 1c00708bb8038dc2060633cf9a6161f7f2a96851 /drivers/char/synclinkmp.c | |
| parent | 761a444d8d059e4e2de326383b1dec4a636e0a92 (diff) | |
| download | lwn-166692e4a045348109f66b493e1b41afde6f3769.tar.gz lwn-166692e4a045348109f66b493e1b41afde6f3769.zip | |
[PATCH] synclinkmp.c: 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/synclinkmp.c')
| -rw-r--r-- | drivers/char/synclinkmp.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c index d55dbf1f9e18..eb31a3b865df 100644 --- a/drivers/char/synclinkmp.c +++ b/drivers/char/synclinkmp.c @@ -2748,6 +2748,8 @@ static int startup(SLMP_INFO * info) info->pending_bh = 0; + memset(&info->icount, 0, sizeof(info->icount)); + /* program hardware for current parameters */ reset_port(info); @@ -2951,12 +2953,12 @@ static int get_stats(SLMP_INFO * info, struct mgsl_icount __user *user_icount) printk("%s(%d):%s get_params()\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):%s get_stats() 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; |