[dpdk-dev] [dpdk_dev][PATCH] array malloced by backtrace_symbols() should be freed by the caller

[chixiaobo]

As to  linux man page: http://linux.die.net/man/3/backtrace_symbols, The 
address of the array of string pointers is returned as the function result of 
backtrace_symbols(). This array is malloced by backtrace_symbols(), and must be 
freed by the caller. The strings pointed to by the array of pointers need not 
and should not be freed.

Signed-off-by: chixiaobo <xiaobo.chi at nokia.com>
---
 lib/librte_eal/bsdapp/eal/eal_debug.c   | 3 +++
 lib/librte_eal/linuxapp/eal/eal_debug.c | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/lib/librte_eal/bsdapp/eal/eal_debug.c 
b/lib/librte_eal/bsdapp/eal/eal_debug.c
index 44fc4f3..ceca2e8 100644
--- a/lib/librte_eal/bsdapp/eal/eal_debug.c
+++ b/lib/librte_eal/bsdapp/eal/eal_debug.c
@@ -58,6 +58,9 @@ void rte_dump_stack(void)
                        "%d: [%s]\n", size, symb[size - 1]);
                size --;
        }
+       /* This array is malloced by backtrace_symbols(), and must be freed by 
the caller */
+       if( symb )
+               free( (void *)symb );
 }

 /* not implemented in this environment */
diff --git a/lib/librte_eal/linuxapp/eal/eal_debug.c 
b/lib/librte_eal/linuxapp/eal/eal_debug.c
index 44fc4f3..ceca2e8 100644
--- a/lib/librte_eal/linuxapp/eal/eal_debug.c
+++ b/lib/librte_eal/linuxapp/eal/eal_debug.c
@@ -58,6 +58,9 @@ void rte_dump_stack(void)
                        "%d: [%s]\n", size, symb[size - 1]);
                size --;
        }
+       /* This array is malloced by backtrace_symbols(), and must be freed by 
the caller */
+       if( symb )
+               free( (void *)symb );
 }

 /* not implemented in this environment */
-- 
1.9.4.msysgit.2