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由 David S. Miller 提交于
GCC (correctly) says: net/socket.c: In function ‘sys_sendto’: net/socket.c:1510: warning: ‘err’ may be used uninitialized in this function net/socket.c: In function ‘sys_recvfrom’: net/socket.c:1571: warning: ‘err’ may be used uninitialized in this function sock_from_file() either returns filp->private_data or it sets *err and returns NULL. Callers return "err" on NULL, but filp->private_data could be NULL. Some minor rearrangements of error handling in sys_sendto and sys_recvfrom solves the issue. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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