[PATCH] esx: Fix managed object lookup with optional occurrence

[Matthias Bolte <matthias.bolte@xxxxxxxxxxxxxx>]

Exit early if managed object is not found, instead of dereferencing
a NULL pointer and triggering a segfault.
---
 src/esx/esx_vi.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/src/esx/esx_vi.c b/src/esx/esx_vi.c
index 5c8d79e..f4033eb 100644
--- a/src/esx/esx_vi.c
+++ b/src/esx/esx_vi.c
@@ -3964,7 +3964,7 @@ esxVI_ProductVersionToDefaultVirtualHWVersion(esxVI_ProductVersion productVersio
 
 
 #define ESX_VI__TEMPLATE__LOOKUP(_type, _complete_properties,                 \
-                                         _cast_from_anytype)                  \
+                                 _cast_from_anytype)                          \
     int                                                                       \
     esxVI_Lookup##_type(esxVI_Context *ctx, const char* name /* optional */,  \
                         esxVI_ManagedObjectReference *root,                   \
@@ -3999,6 +3999,12 @@ esxVI_ProductVersionToDefaultVirtualHWVersion(esxVI_ProductVersion productVersio
             goto cleanup;                                                     \
         }                                                                     \
                                                                               \
+        if (objectContent == NULL) {                                          \
+            /* not found, exit early */                                       \
+            result = 0;                                                       \
+            goto cleanup;                                                     \
+        }                                                                     \
+                                                                              \
         if (esxVI_##_type##_Alloc(ptrptr) < 0) {                              \
             goto cleanup;                                                     \
         }                                                                     \
-- 
1.7.4.1

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