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net/smc: add missing error check in smc_clc_prfx_set() 

Coverity stumbled over a missing error check in smc_clc_prfx_set():

*** CID 1475954:  Error handling issues  (CHECKED_RETURN)
/net/smc/smc_clc.c: 233 in smc_clc_prfx_set()
>>>     CID 1475954:  Error handling issues  (CHECKED_RETURN)
>>>     Calling "kernel_getsockname" without checking return value (as is done elsewhere 8 out of 10 times).
233     	kernel_getsockname(clcsock, (struct sockaddr *)&addrs);

Add the return code check in smc_clc_prfx_set().

Fixes: c246d942ea ("net/smc: restructure netinfo for CLC proposal msgs")
Reported-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Karsten Graul 2021-09-20 21:18:14 +02:00 committed by David S. Miller
parent 36747c96ed
commit 6c90731980
1 changed files with 2 additions and 1 deletions
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3
net/smc/smc_clc.c
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@ -230,7 +230,8 @@ static int smc_clc_prfx_set(struct socket *clcsock,
goto out_rel;
}
/* get address to which the internal TCP socket is bound */
kernel_getsockname(clcsock, (struct sockaddr *)&addrs);
if (kernel_getsockname(clcsock, (struct sockaddr *)&addrs) < 0)
goto out_rel;
/* analyze IP specific data of net_device belonging to TCP socket */
addr6 = (struct sockaddr_in6 *)&addrs;
rcu_read_lock();