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sunrpc: Fix return value of get_srcport()

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[ Upstream commit 5d46dd04cb68771f77ba66dbf6fd323a4a2ce00d ]

Since bc1c56e9bbe9 transport->srcport may by unset, causing
get_srcport() to return 0 when called. Fix this by querying the port
from the underlying socket instead of the transport.

Fixes: bc1c56e9bbe9 (SUNRPC: prevent port reuse on transports which don't request it)
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Anna Schumaker 2021-07-20 16:04:42 -04:00 committed by Greg Kroah-Hartman
parent 21a2be1a51
commit f02ab9d1d3
1 changed files with 1 additions and 1 deletions
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2
net/sunrpc/xprtsock.c
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@ -1642,7 +1642,7 @@ static int xs_get_srcport(struct sock_xprt *transport)
unsigned short get_srcport(struct rpc_xprt *xprt)
{
struct sock_xprt *sock = container_of(xprt, struct sock_xprt, xprt);
return sock->srcport;
return xs_sock_getport(sock->sock);
}
EXPORT_SYMBOL(get_srcport);