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iov: avoid "orig_len may be used unitialized" warning 

Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Michael Tokarev 2013-09-14 13:11:36 +04:00
parent 69fded480e
commit 2be178a475
1 changed files with 4 additions and 6 deletions
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10
util/iov.c
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@ -181,13 +181,11 @@ ssize_t iov_send_recv(int sockfd, struct iovec *iov, unsigned iov_cnt,
assert(iov[niov].iov_len > tail);
orig_len = iov[niov].iov_len;
iov[niov++].iov_len = tail;
}
ret = do_send_recv(sockfd, iov, niov, do_send);
/* Undo the changes above before checking for errors */
if (tail) {
ret = do_send_recv(sockfd, iov, niov, do_send);
/* Undo the changes above before checking for errors */
iov[niov-1].iov_len = orig_len;
} else {
ret = do_send_recv(sockfd, iov, niov, do_send);
}
if (offset) {
iov[0].iov_base -= offset;