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author | markster <markster@5390a7c7-147a-4af0-8ec9-7488f05a26cb> | 2003-07-17 03:48:31 +0000 |
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committer | markster <markster@5390a7c7-147a-4af0-8ec9-7488f05a26cb> | 2003-07-17 03:48:31 +0000 |
commit | 97c18d89852068b29e9e4100caa451de06c0700c (patch) | |
tree | 39f142a3a85ab30a866201e7ec81cef878167697 /zaptel.c | |
parent | cea3faf77f6dddf415e7118b5aa8bc1e369b112f (diff) |
Ensure writes are positive amount of data (oops)
git-svn-id: http://svn.digium.com/svn/zaptel/trunk@215 5390a7c7-147a-4af0-8ec9-7488f05a26cb
Diffstat (limited to 'zaptel.c')
-rwxr-xr-x | zaptel.c | 2 |
1 files changed, 2 insertions, 0 deletions
@@ -1472,6 +1472,8 @@ static ssize_t zt_chan_write(struct file *file, const char *usrbuf, size_t count int res, amnt, oldbuf, rv,x; if (!chan) return -EINVAL; + if (count < 1) + return -EINVAL; for(;;) { spin_lock_irqsave(&chan->lock, flags); if (chan->curtone && !(chan->flags & ZT_FLAG_PSEUDO)) { |