[sysprof] kernel-symbol: fix alignment warning

[Christian Hergert <chergert src gnome org>]

commit 94c8551063d30bbb830495cd1d857e1abc4b36e5
Author: Christian Hergert <chergert redhat com>
Date:   Sun Aug 21 17:25:50 2016 -0700

    kernel-symbol: fix alignment warning
    
    Our pointer is always malloc() aligned, so we have a safe cast here.

 lib/sp-kernel-symbol.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/lib/sp-kernel-symbol.c b/lib/sp-kernel-symbol.c
index 2855b29..3a3d9c9 100644
--- a/lib/sp-kernel-symbol.c
+++ b/lib/sp-kernel-symbol.c
@@ -198,7 +198,7 @@ sp_kernel_symbol_from_address (SpCaptureAddress address)
   if (address < first->address)
     return NULL;
 
-  return sp_kernel_symbol_lookup ((SpKernelSymbol *)kernel_symbols->data,
+  return sp_kernel_symbol_lookup ((SpKernelSymbol *)(gpointer)kernel_symbols->data,
                                   address,
                                   0,
                                   kernel_symbols->len - 1);