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fs/nfsd: Delete invalid assignment statements in nfsd4_decode_exchange_id

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READ_BUF(8);
dummy = be32_to_cpup(p++);
dummy = be32_to_cpup(p++);
...
READ_BUF(4);
dummy = be32_to_cpup(p++);

Assigning value to "dummy" here, but that stored value
is overwritten before it can be used.
At the same time READ_BUF() will re-update the pointer p.

delete invalid assignment statements

Signed-off-by: nixiaoming <nixiaoming@huawei.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <trondmy@hammerspace.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
nixiaoming 2018-07-23 09:57:11 +08:00 committed by J. Bruce Fields
parent 11b4d66ea3
commit 5ed96bc545
1 changed files with 1 additions and 3 deletions
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4
fs/nfsd/nfs4xdr.c
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@ -1390,10 +1390,8 @@ nfsd4_decode_exchange_id(struct nfsd4_compoundargs *argp,
p += XDR_QUADLEN(dummy);
}
/* ssp_window and ssp_num_gss_handles */
/* ignore ssp_window and ssp_num_gss_handles: */
READ_BUF(8);
dummy = be32_to_cpup(p++);
dummy = be32_to_cpup(p++);
break;
default:
goto xdr_error;