tipc: fix a memleak when sending data
tipc: fix a memleak when sending data

This fixes a regression bug caused by:
067608e9d019d6477fd45dd948e81af0e5bf599f ("tipc: introduce direct
iovec to buffer chain fragmentation function")

If data is sent on a nonblocking socket and the destination link
is congested, the buffer chain is leaked. We fix this by freeing
the chain in this case.

Signed-off-by: Erik Hugne <527d9b95423f3946c01de0ba884fdd8bb4a3759d@ericsson.com>
Signed-off-by: Jon Maloy <0e60c7c02f6d30eccc82572d2a89766b1b2a3d45@ericsson.com>
Acked-by: Ying Xue <c1cbb87de349443b90fa63f6d2cc5403843bc133@windriver.com>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs