setupapi: Fix some last errors for SetupFindFirstLine.
diff --git a/dlls/setupapi/parser.c b/dlls/setupapi/parser.c
index fe2011e..d266cf8 100644
--- a/dlls/setupapi/parser.c
+++ b/dlls/setupapi/parser.c
@@ -1371,7 +1371,6 @@
     struct inf_file *file;
     int section_index;
 
-    SetLastError( ERROR_SECTION_NOT_FOUND );
     for (file = hinf; file; file = file->next)
     {
         if ((section_index = find_section( file, section )) == -1) continue;
@@ -1384,7 +1383,6 @@
             ctx.Line       = -1;
             return SetupFindNextMatchLineW( &ctx, key, context );
         }
-        SetLastError( ERROR_LINE_NOT_FOUND );  /* found at least one section */
         if (file->sections[section_index]->nb_lines)
         {
             context->Inf        = hinf;
@@ -1398,6 +1396,7 @@
         }
     }
     TRACE( "(%p,%s,%s): not found\n", hinf, debugstr_w(section), debugstr_w(key) );
+    SetLastError( ERROR_LINE_NOT_FOUND );
     return FALSE;
 }