diff options
| author | Pavel Emelyanov <xemul@openvz.org> | 2008-04-25 01:49:48 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-05-01 14:44:32 -0700 |
| commit | dc2ee1a436bee6ada5afeedb62dc015ed5553f3d (patch) | |
| tree | 40564ab300c5b428993c65fa044965bd8ffe285e /net/dccp | |
| parent | 75e109ad447b0bded3f0e2b2def52bce4fa9a1ea (diff) | |
net: Fix wrong interpretation of some copy_to_user() results.
[ Upstream commit: 653252c2302cdf2dfbca66a7e177f7db783f9efa ]
I found some places, that erroneously return the value obtained from
the copy_to_user() call: if some amount of bytes were not able to get
to the user (this is what this one returns) the proper behavior is to
return the -EFAULT error, not that number itself.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net/dccp')
| -rw-r--r-- | net/dccp/probe.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/dccp/probe.c b/net/dccp/probe.c index 7053bb827bc..44eddcf5f49 100644 --- a/net/dccp/probe.c +++ b/net/dccp/probe.c @@ -145,7 +145,7 @@ static ssize_t dccpprobe_read(struct file *file, char __user *buf, goto out_free; cnt = kfifo_get(dccpw.fifo, tbuf, len); - error = copy_to_user(buf, tbuf, cnt); + error = copy_to_user(buf, tbuf, cnt) ? -EFAULT : 0; out_free: vfree(tbuf); |