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| author | Chenggang Qin | 2013-10-11 02:27:57 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2013-10-14 17:21:23 +0200 |
| commit | 784f3390f9bd900adfb3b0373615e105a0d9749a (patch) | |
| tree | da35f0ffc970ef9b1348ae9179c5cde2843d68f9 /tools/perf/util/scripting-engines | |
| parent | perf symbols: Fix a memory leak due to symbol__delete not being used (diff) | |
| download | kernel-qcow2-linux-784f3390f9bd900adfb3b0373615e105a0d9749a.tar.gz kernel-qcow2-linux-784f3390f9bd900adfb3b0373615e105a0d9749a.tar.xz kernel-qcow2-linux-784f3390f9bd900adfb3b0373615e105a0d9749a.zip | |
perf symbols: Fix a mmap and munmap mismatched bug
In function filename__read_debuglink(), while the ELF file is opend and
mmapped in elf_begin(), but if this file is considered to not be usable
during the following code, we will goto the close(fd) directly. The
elf_end() is skipped. So, the mmaped ELF file cannot be munmapped. The
mmapped areas exist during the life of perf.
This is a memory leak. This patch fixed this bug.
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Chenggang Qin <chenggang.qcg@taobao.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Chenggang Qin <chenggang.qcg@taobao.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Yanmin Zhang <yanmin.zhang@intel.com>
Link: http://lkml.kernel.org/r/1381451279-4109-1-git-send-email-chenggang.qin@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/scripting-engines')
0 files changed, 0 insertions, 0 deletions