AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-24 02:30:52 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

perf record: Fix memory leak when using '--user-regs=?' to list registers

Browse Source 
[ Upstream commit 2eb5dd418034ecea2f7031e3d33f2991a878b148 ]

When using 'perf record's option '-I' or '--user-regs=' along with
argument '?' to list available register names, memory of variable 'os'
allocated by strdup() needs to be released before __parse_regs()
returns, otherwise memory leak will occur.

Fixes: bcc84ec65a ("perf record: Add ability to name registers to record")
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Li Bin <huawei.libin@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20200703093344.189450-1-zhengzengkai@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Zheng Zengkai 2020-07-03 17:33:44 +08:00 committed by Greg Kroah-Hartman
parent 03cbbd5648
commit 98c9b3aeff
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/perf/util/parse-regs-options.c
View File

@ -54,7 +54,7 @@ __parse_regs(const struct option *opt, const char *str, int unset, bool intr)
#endif
fputc('\n', stderr);
/* just printing available regs */
return -1;
goto error;
}
#ifdef HAVE_PERF_REGS_SUPPORT
for (r = sample_reg_masks; r->name; r++) {