perf tools: Introduce zfree

For the frequent idiom of:

   free(ptr);
   ptr = NULL;

Make it expect a pointer to the pointer being freed, so that it becomes
clear at first sight that the variable being freed is being modified.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-pfw02ezuab37kha18wlut7ir@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2013-12-26 17:41:15 -03:00
parent f5385650c0
commit 046625231a
22 changed files with 56 additions and 103 deletions

View file

@ -55,8 +55,7 @@ int split_cmdline(char *cmdline, const char ***argv)
src++;
c = cmdline[src];
if (!c) {
free(*argv);
*argv = NULL;
zfree(argv);
return error("cmdline ends with \\");
}
}
@ -68,8 +67,7 @@ int split_cmdline(char *cmdline, const char ***argv)
cmdline[dst] = 0;
if (quoted) {
free(*argv);
*argv = NULL;
zfree(argv);
return error("unclosed quote");
}