commit 7bf31c32c893f9db1d0c57beb3822192c1bce2dc
author Ramkumar Radhakrishnan <ramkumar@codeaurora.org> Mon Jan 28 22:51:51 2013 -0800
committer Ramkumar Radhakrishnan <ramkumar@codeaurora.org> Tue Jan 29 12:03:25 2013 -0800
tree d86b329242d5a1c53093f3a73605512afb4acd72
parent 757b82e9b0f0551af4945329cb20bb12dedf0cd5

display: Reset metadata pointer to NULL during unmap.

Initialize metadata pointer in the buffer handle to NULL after
unmapping the buffer pointer

Change-Id: I930a2d21a6f259426949d7aa58bd07f1f58839c0
CRs-Fixed: 434388

libgralloc/mapper.cpp

diff --git a/libgralloc/mapper.cpp b/libgralloc/mapper.cpp
index 197c372..b3e371a 100644
--- a/libgralloc/mapper.cpp
+++ b/libgralloc/mapper.cpp
@@ -117,7 +117,10 @@
             }
         }
     }
+    /* need to initialize the pointer to NULL otherwise unmapping for that
+     * buffer happens twice which leads to crash */
     hnd->base = 0;
+    hnd->base_metadata = 0;
     return 0;
 }
 
@@ -144,6 +147,7 @@
 
     private_handle_t* hnd = (private_handle_t*)handle;
     hnd->base = 0;
+    hnd->base_metadata = 0;
     void *vaddr;
     int err = gralloc_map(module, handle, &vaddr);
     if (err) {
@@ -190,6 +194,7 @@
         gralloc_unmap(module, handle);
     }
     hnd->base = 0;
+    hnd->base_metadata = 0;
     // Release the genlock
     if (-1 != hnd->genlockHandle) {
         return genlock_release_lock((native_handle_t *)handle);