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path: root/fs/cifs/cifssmb.c
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-rw-r--r--fs/cifs/cifssmb.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 16bd4cf3bceb..f72e3b3dca69 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -2537,8 +2537,9 @@ CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
pSMB->TotalDataCount = pSMB->DataCount;
pSMB->TotalParameterCount = pSMB->ParameterCount;
pSMB->ParameterOffset = cpu_to_le16(param_offset);
+ /* SMB offsets are from the beginning of SMB which is 4 bytes in, after RFC1001 field */
parm_data = (struct cifs_posix_lock *)
- (((char *) &pSMB->hdr.Protocol) + offset);
+ (((char *)pSMB) + offset + 4);
parm_data->lock_type = cpu_to_le16(lock_type);
if (waitFlag) {