Added mutex protection to cmsSaveProfileToIOhandler

1 files changed, 9 insertions, 2 deletions

diff --git a/src/cmsio0.c b/src/cmsio0.c
index 7dd69e3..9937b19 100644
--- a/src/cmsio0.c
+++ b/src/cmsio0.c
@@ -1299,12 +1299,16 @@ cmsUInt32Number CMSEXPORT cmsSaveProfileToIOhandler(cmsHPROFILE hProfile, cmsIOH
     cmsContext ContextID;
 
     _cmsAssert(hProfile != NULL);
-
+    
+    if (!_cmsLockMutex(Icc->ContextID, Icc->UsrMutex)) return 0;
     memmove(&Keep, Icc, sizeof(_cmsICCPROFILE));
 
     ContextID = cmsGetProfileContextID(hProfile);
     PrevIO = Icc ->IOhandler = cmsOpenIOhandlerFromNULL(ContextID);
-    if (PrevIO == NULL) return 0;
+    if (PrevIO == NULL) {
+        _cmsUnlockMutex(Icc->ContextID, Icc->UsrMutex);
+        return 0;
+    }
 
     // Pass #1 does compute offsets
 
@@ -1325,6 +1329,7 @@ cmsUInt32Number CMSEXPORT cmsSaveProfileToIOhandler(cmsHPROFILE hProfile, cmsIOH
 
     memmove(Icc, &Keep, sizeof(_cmsICCPROFILE));
     if (!cmsCloseIOhandler(PrevIO)) return 0;
+    _cmsUnlockMutex(Icc->ContextID, Icc->UsrMutex);
 
     return UsedSpace;
 
@@ -1332,6 +1337,8 @@ cmsUInt32Number CMSEXPORT cmsSaveProfileToIOhandler(cmsHPROFILE hProfile, cmsIOH
 Error:
     cmsCloseIOhandler(PrevIO);
     memmove(Icc, &Keep, sizeof(_cmsICCPROFILE));
+    _cmsUnlockMutex(Icc->ContextID, Icc->UsrMutex);
+
     return 0;
 }