Make nfs_file_cred more robust.
As not all files have an associated open_context (e.g. device special files), it is safest to test for the existence of the open context before de-referencing it. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Trond Myklebust
parent
18de973530
commit
504e518953
@@ -1659,8 +1659,10 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
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struct nfs_open_context *ctx;
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ctx = nfs_file_open_context(sattr->ia_file);
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cred = ctx->cred;
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state = ctx->state;
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if (ctx) {
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cred = ctx->cred;
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state = ctx->state;
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}
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}
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status = nfs4_do_setattr(inode, cred, fattr, sattr, state);
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