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author | Namhyung Kim <namhyung.kim@lge.com> | 2013-03-21 07:18:45 (GMT) |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-03-21 16:12:28 (GMT) |
commit | 5a6fd27ad73fef0ed39a00236acbc3a17834672a (patch) | |
tree | 0dbe82d5625aca21ec96ad032e4375ba613b0e36 /tools/perf/util/trace-event-info.c | |
parent | 454f8c7d26fa7e1545df4efca5d9ba929ccef1e8 (diff) | |
download | linux-fsl-qoriq-5a6fd27ad73fef0ed39a00236acbc3a17834672a.tar.xz |
perf tools: Get rid of malloc_or_die() in trace-event-info.c
Check return value of malloc and fail if NULL.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1363850332-25297-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/trace-event-info.c')
-rw-r--r-- | tools/perf/util/trace-event-info.c | 48 |
1 files changed, 30 insertions, 18 deletions
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c index 81c6732..91db6e8 100644 --- a/tools/perf/util/trace-event-info.c +++ b/tools/perf/util/trace-event-info.c @@ -47,16 +47,6 @@ static const char *output_file = "trace.info"; static int output_fd; -static void *malloc_or_die(unsigned int size) -{ - void *data; - - data = malloc(size); - if (!data) - die("malloc"); - return data; -} - static const char *find_debugfs(void) { const char *path = perf_debugfs_mount(NULL); @@ -209,7 +199,7 @@ static bool name_in_tp_list(char *sys, struct tracepoint_path *tps) return false; } -static void copy_event_system(const char *sys, struct tracepoint_path *tps) +static int copy_event_system(const char *sys, struct tracepoint_path *tps) { struct dirent *dent; struct stat st; @@ -217,6 +207,7 @@ static void copy_event_system(const char *sys, struct tracepoint_path *tps) DIR *dir; int count = 0; int ret; + int err; dir = opendir(sys); if (!dir) @@ -228,7 +219,11 @@ static void copy_event_system(const char *sys, struct tracepoint_path *tps) strcmp(dent->d_name, "..") == 0 || !name_in_tp_list(dent->d_name, tps)) continue; - format = malloc_or_die(strlen(sys) + strlen(dent->d_name) + 10); + format = malloc(strlen(sys) + strlen(dent->d_name) + 10); + if (!format) { + err = -ENOMEM; + goto out; + } sprintf(format, "%s/%s/format", sys, dent->d_name); ret = stat(format, &st); free(format); @@ -246,16 +241,22 @@ static void copy_event_system(const char *sys, struct tracepoint_path *tps) strcmp(dent->d_name, "..") == 0 || !name_in_tp_list(dent->d_name, tps)) continue; - format = malloc_or_die(strlen(sys) + strlen(dent->d_name) + 10); + format = malloc(strlen(sys) + strlen(dent->d_name) + 10); + if (!format) { + err = -ENOMEM; + goto out; + } sprintf(format, "%s/%s/format", sys, dent->d_name); ret = stat(format, &st); if (ret >= 0) record_file(format, 8); - free(format); } + err = 0; +out: closedir(dir); + return err; } static void read_ftrace_files(struct tracepoint_path *tps) @@ -282,7 +283,7 @@ static bool system_in_tp_list(char *sys, struct tracepoint_path *tps) return false; } -static void read_event_files(struct tracepoint_path *tps) +static int read_event_files(struct tracepoint_path *tps) { struct dirent *dent; struct stat st; @@ -291,6 +292,7 @@ static void read_event_files(struct tracepoint_path *tps) DIR *dir; int count = 0; int ret; + int err; path = get_tracing_file("events"); if (!path) @@ -320,7 +322,11 @@ static void read_event_files(struct tracepoint_path *tps) strcmp(dent->d_name, "ftrace") == 0 || !system_in_tp_list(dent->d_name, tps)) continue; - sys = malloc_or_die(strlen(path) + strlen(dent->d_name) + 2); + sys = malloc(strlen(path) + strlen(dent->d_name) + 2); + if (!sys) { + err = -ENOMEM; + goto out; + } sprintf(sys, "%s/%s", path, dent->d_name); ret = stat(sys, &st); if (ret >= 0) { @@ -329,9 +335,12 @@ static void read_event_files(struct tracepoint_path *tps) } free(sys); } - + err = 0; +out: closedir(dir); put_tracing_file(path); + + return err; } static void read_proc_kallsyms(void) @@ -463,7 +472,10 @@ struct tracing_data *tracing_data_get(struct list_head *pattrs, if (!tps) return NULL; - tdata = malloc_or_die(sizeof(*tdata)); + tdata = malloc(sizeof(*tdata)); + if (!tdata) + return NULL; + tdata->temp = temp; tdata->size = 0; |