cifs: replace code with free_rsp_buf()

The functionality provided by free_rsp_buf() is duplicated in a number
of places. Replace these instances with a call to free_rsp_buf().
Signed-off-by: NSachin Prabhu <sprabhu@redhat.com>
Reviewed-by: NShirish Pargaonkar <spargaonkar@suse.com>
Signed-off-by: NSteve French <smfrench@gmail.com>

fs/cifs/cifsproto.h

@@ -36,6 +36,7 @@ extern struct smb_hdr *cifs_buf_get(void);
 extern void cifs_buf_release(void *);
 extern struct smb_hdr *cifs_small_buf_get(void);
 extern void cifs_small_buf_release(void *);
+extern void free_rsp_buf(int, void *);
 extern void cifs_rqst_page_to_kvec(struct smb_rqst *rqst, unsigned int idx,
 					struct kvec *iov);
 extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,

fs/cifs/cifssmb.c

@@ -1734,10 +1734,7 @@ CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
 
 /*	cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */
 	if (*buf) {
-		if (resp_buf_type == CIFS_SMALL_BUFFER)
-			cifs_small_buf_release(iov[0].iov_base);
-		else if (resp_buf_type == CIFS_LARGE_BUFFER)
-			cifs_buf_release(iov[0].iov_base);
+		free_rsp_buf(resp_buf_type, iov[0].iov_base);
 	} else if (resp_buf_type != CIFS_NO_BUFFER) {
 		/* return buffer to caller to free */
 		*buf = iov[0].iov_base;
@@ -2203,10 +2200,7 @@ CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
 	}
 
 /*	cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */
-	if (resp_buf_type == CIFS_SMALL_BUFFER)
-		cifs_small_buf_release(iov[0].iov_base);
-	else if (resp_buf_type == CIFS_LARGE_BUFFER)
-		cifs_buf_release(iov[0].iov_base);
+	free_rsp_buf(resp_buf_type, iov[0].iov_base);
 
 	/* Note: On -EAGAIN error only caller can retry on handle based calls
 		since file handle passed in no longer valid */
@@ -2451,10 +2445,7 @@ CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
 	if (pSMB)
 		cifs_small_buf_release(pSMB);
 
-	if (resp_buf_type == CIFS_SMALL_BUFFER)
-		cifs_small_buf_release(iov[0].iov_base);
-	else if (resp_buf_type == CIFS_LARGE_BUFFER)
-		cifs_buf_release(iov[0].iov_base);
+	free_rsp_buf(resp_buf_type, iov[0].iov_base);
 
 	/* Note: On -EAGAIN error only caller can retry on handle based calls
 	   since file handle passed in no longer valid */
@@ -3838,10 +3829,7 @@ CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon, __u16 fid,
 		}
 	}
 qsec_out:
-	if (buf_type == CIFS_SMALL_BUFFER)
-		cifs_small_buf_release(iov[0].iov_base);
-	else if (buf_type == CIFS_LARGE_BUFFER)
-		cifs_buf_release(iov[0].iov_base);
+	free_rsp_buf(buf_type, iov[0].iov_base);
 /*	cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */
 	return rc;
 }

fs/cifs/misc.c

@@ -226,6 +226,15 @@ cifs_small_buf_release(void *buf_to_free)
 	return;
 }
 
+void
+free_rsp_buf(int resp_buftype, void *rsp)
+{
+	if (resp_buftype == CIFS_SMALL_BUFFER)
+		cifs_small_buf_release(rsp);
+	else if (resp_buftype == CIFS_LARGE_BUFFER)
+		cifs_buf_release(rsp);
+}
+
 /* NB: MID can not be set if treeCon not passed in, in that
    case it is responsbility of caller to set the mid */
 void

fs/cifs/smb2pdu.c

@@ -309,16 +309,6 @@ small_smb2_init(__le16 smb2_command, struct cifs_tcon *tcon,
 	return rc;
 }
 
-static void
-free_rsp_buf(int resp_buftype, void *rsp)
-{
-	if (resp_buftype == CIFS_SMALL_BUFFER)
-		cifs_small_buf_release(rsp);
-	else if (resp_buftype == CIFS_LARGE_BUFFER)
-		cifs_buf_release(rsp);
-}
-
-
 /*
  *
  *	SMB2 Worker functions follow: