Zebediah Figura : msi: Avoid a null pointer dereference.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: b4c39f4e7c9d8b20afb615f00f1013b7fec69b91
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=b4c39f4e7c9d8b20afb615f00f1013b7fec69b91

Author: Zebediah Figura <z.figura12 at gmail.com>
Date:   Thu Jul 20 23:43:11 2017 -0500

msi: Avoid a null pointer dereference.

Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
Signed-off-by: Hans Leidekker <hans at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/msi/database.c | 5 +++++
 dlls/msi/tests/db.c | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/dlls/msi/database.c b/dlls/msi/database.c
index 34f8d04..85e8306 100644
--- a/dlls/msi/database.c
+++ b/dlls/msi/database.c
@@ -778,6 +778,11 @@ static UINT MSI_DatabaseImport(MSIDATABASE *db, LPCWSTR folder, LPCWSTR file)
     lstrcatW( path, file );
 
     data = msi_read_text_archive( path, &len );
+    if (!data)
+    {
+        msi_free(path);
+        return ERROR_FUNCTION_FAILED;
+    }
 
     ptr = data;
     msi_parse_line( &ptr, &columns, &num_columns, &len );
diff --git a/dlls/msi/tests/db.c b/dlls/msi/tests/db.c
index 278b45f..4ea1f10 100644
--- a/dlls/msi/tests/db.c
+++ b/dlls/msi/tests/db.c
@@ -2369,6 +2369,12 @@ static void test_msiimport(void)
     r = MsiOpenDatabaseW(msifileW, MSIDBOPEN_CREATE, &hdb);
     ok(r == ERROR_SUCCESS, "Expected ERROR_SUCCESS, got %d\n", r);
 
+    r = MsiDatabaseImportA(hdb, CURR_DIR, NULL);
+    ok(r == ERROR_INVALID_PARAMETER, "Expected ERROR_INVALID_PARAMETER, got %d\n", r);
+
+    r = MsiDatabaseImportA(hdb, CURR_DIR, "nonexistent");
+    ok(r == ERROR_FUNCTION_FAILED, "Expected ERROR_FUNCTION_FAILED, got %d\n", r);
+
     r = add_table_to_db(hdb, test_data);
     ok(r == ERROR_SUCCESS, "Expected ERROR_SUCCESS, got %d\n", r);