nfsd: Remove assignments inside conditions

Assignments should not happen inside an if conditional, but in the line
before. This issue was reported by checkpatch.

The semantic patch that makes this change is as follows
(http://coccinelle.lip6.fr/):

// <smpl>

@@
identifier i1;
expression e1;
statement S;
@@
-if(!(i1 = e1)) S
+i1 = e1;
+if(!i1)
+S

// </smpl>

It has been tested by compilation.

Signed-off-by: Benoit Taine <benoit.taine@lip6.fr>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

fs/nfsd/nfs2acl.c

@@ -182,7 +182,8 @@ static __be32 nfsacld_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessarg
 static int nfsaclsvc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p,
 		struct nfsd3_getaclargs *argp)
 {
-	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
+	p = nfs2svc_decode_fh(p, &argp->fh);
+	if (!p)
 		return 0;
 	argp->mask = ntohl(*p); p++;
 
@@ -197,7 +198,8 @@ static int nfsaclsvc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p,
 	unsigned int base;
 	int n;
 
-	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
+	p = nfs2svc_decode_fh(p, &argp->fh);
+	if (!p)
 		return 0;
 	argp->mask = ntohl(*p++);
 	if (argp->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT) ||
@@ -218,15 +220,17 @@ static int nfsaclsvc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p,
 static int nfsaclsvc_decode_fhandleargs(struct svc_rqst *rqstp, __be32 *p,
 		struct nfsd_fhandle *argp)
 {
-	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
+	p = nfs2svc_decode_fh(p, &argp->fh);
+	if (!p)
 		return 0;
 	return xdr_argsize_check(rqstp, p);
 }
 
 static int nfsaclsvc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p,
 		struct nfsd3_accessargs *argp)
 {
-	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
+	p = nfs2svc_decode_fh(p, &argp->fh);
+	if (!p)
 		return 0;
 	argp->access = ntohl(*p++);
 

fs/nfsd/nfs3acl.c

@@ -128,7 +128,8 @@ static __be32 nfsd3_proc_setacl(struct svc_rqst * rqstp,
 static int nfs3svc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p,
 		struct nfsd3_getaclargs *args)
 {
-	if (!(p = nfs3svc_decode_fh(p, &args->fh)))
+	p = nfs3svc_decode_fh(p, &args->fh);
+	if (!p)
 		return 0;
 	args->mask = ntohl(*p); p++;
 
@@ -143,7 +144,8 @@ static int nfs3svc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p,
 	unsigned int base;
 	int n;
 
-	if (!(p = nfs3svc_decode_fh(p, &args->fh)))
+	p = nfs3svc_decode_fh(p, &args->fh);
+	if (!p)
 		return 0;
 	args->mask = ntohl(*p++);
 	if (args->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT) ||

fs/nfsd/nfs3xdr.c

@@ -278,7 +278,8 @@ void fill_post_wcc(struct svc_fh *fhp)
 int
 nfs3svc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p, struct nfsd_fhandle *args)
 {
-	if (!(p = decode_fh(p, &args->fh)))
+	p = decode_fh(p, &args->fh);
+	if (!p)
 		return 0;
 	return xdr_argsize_check(rqstp, p);
 }
@@ -287,7 +288,8 @@ int
 nfs3svc_decode_sattrargs(struct svc_rqst *rqstp, __be32 *p,
 					struct nfsd3_sattrargs *args)
 {
-	if (!(p = decode_fh(p, &args->fh)))
+	p = decode_fh(p, &args->fh);
+	if (!p)
 		return 0;
 	p = decode_sattr3(p, &args->attrs);
 
@@ -315,7 +317,8 @@ int
 nfs3svc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p,
 					struct nfsd3_accessargs *args)
 {
-	if (!(p = decode_fh(p, &args->fh)))
+	p = decode_fh(p, &args->fh);
+	if (!p)
 		return 0;
 	args->access = ntohl(*p++);
 
@@ -330,7 +333,8 @@ nfs3svc_decode_readargs(struct svc_rqst *rqstp, __be32 *p,
 	int v;
 	u32 max_blocksize = svc_max_payload(rqstp);
 
-	if (!(p = decode_fh(p, &args->fh)))
+	p = decode_fh(p, &args->fh);
+	if (!p)
 		return 0;
 	p = xdr_decode_hyper(p, &args->offset);
 
@@ -360,7 +364,8 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
 	unsigned int len, v, hdr, dlen;
 	u32 max_blocksize = svc_max_payload(rqstp);
 
-	if (!(p = decode_fh(p, &args->fh)))
+	p = decode_fh(p, &args->fh);
+	if (!p)
 		return 0;
 	p = xdr_decode_hyper(p, &args->offset);
 
@@ -535,7 +540,8 @@ int
 nfs3svc_decode_readlinkargs(struct svc_rqst *rqstp, __be32 *p,
 					struct nfsd3_readlinkargs *args)
 {
-	if (!(p = decode_fh(p, &args->fh)))
+	p = decode_fh(p, &args->fh);
+	if (!p)
 		return 0;
 	args->buffer = page_address(*(rqstp->rq_next_page++));
 
@@ -558,7 +564,8 @@ int
 nfs3svc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p,
 					struct nfsd3_readdirargs *args)
 {
-	if (!(p = decode_fh(p, &args->fh)))
+	p = decode_fh(p, &args->fh);
+	if (!p)
 		return 0;
 	p = xdr_decode_hyper(p, &args->cookie);
 	args->verf   = p; p += 2;
@@ -580,7 +587,8 @@ nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, __be32 *p,
 	int len;
 	u32 max_blocksize = svc_max_payload(rqstp);
 
-	if (!(p = decode_fh(p, &args->fh)))
+	p = decode_fh(p, &args->fh);
+	if (!p)
 		return 0;
 	p = xdr_decode_hyper(p, &args->cookie);
 	args->verf     = p; p += 2;
@@ -605,7 +613,8 @@ int
 nfs3svc_decode_commitargs(struct svc_rqst *rqstp, __be32 *p,
 					struct nfsd3_commitargs *args)
 {
-	if (!(p = decode_fh(p, &args->fh)))
+	p = decode_fh(p, &args->fh);
+	if (!p)
 		return 0;
 	p = xdr_decode_hyper(p, &args->offset);
 	args->count = ntohl(*p++);

fs/nfsd/nfsxdr.c

@@ -214,7 +214,8 @@ nfssvc_decode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
 int
 nfssvc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p, struct nfsd_fhandle *args)
 {
-	if (!(p = decode_fh(p, &args->fh)))
+	p = decode_fh(p, &args->fh);
+	if (!p)
 		return 0;
 	return xdr_argsize_check(rqstp, p);
 }
@@ -248,7 +249,8 @@ nfssvc_decode_readargs(struct svc_rqst *rqstp, __be32 *p,
 {
 	unsigned int len;
 	int v;
-	if (!(p = decode_fh(p, &args->fh)))
+	p = decode_fh(p, &args->fh);
+	if (!p)
 		return 0;
 
 	args->offset    = ntohl(*p++);
@@ -281,7 +283,8 @@ nfssvc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
 	unsigned int len, hdr, dlen;
 	int v;
 
-	if (!(p = decode_fh(p, &args->fh)))
+	p = decode_fh(p, &args->fh);
+	if (!p)
 		return 0;
 
 	p++;				/* beginoffset */
@@ -355,7 +358,8 @@ nfssvc_decode_renameargs(struct svc_rqst *rqstp, __be32 *p,
 int
 nfssvc_decode_readlinkargs(struct svc_rqst *rqstp, __be32 *p, struct nfsd_readlinkargs *args)
 {
-	if (!(p = decode_fh(p, &args->fh)))
+	p = decode_fh(p, &args->fh);
+	if (!p)
 		return 0;
 	args->buffer = page_address(*(rqstp->rq_next_page++));
 
@@ -391,7 +395,8 @@ int
 nfssvc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p,
 					struct nfsd_readdirargs *args)
 {
-	if (!(p = decode_fh(p, &args->fh)))
+	p = decode_fh(p, &args->fh);
+	if (!p)
 		return 0;
 	args->cookie = ntohl(*p++);
 	args->count  = ntohl(*p++);