Messages in this thread Patch in this message |  | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 37/38] tools lib traceevent: Remove malloc_or_die from plugin_function.c | Date | Wed, 4 Dec 2013 17:07:01 -0300 |
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From: Jiri Olsa <jolsa@redhat.com>
Removing malloc_or_die calls from plugin_function.c, replacing them and factoring the code with standard realloc and error path.
Suggested-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@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/1386076182-14484-27-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/lib/traceevent/plugin_function.c | 29 ++++++++++++++++++++--------- 1 file changed, 20 insertions(+), 9 deletions(-)
diff --git a/tools/lib/traceevent/plugin_function.c b/tools/lib/traceevent/plugin_function.c index 87acf9c77948..aad92ad5e96f 100644 --- a/tools/lib/traceevent/plugin_function.c +++ b/tools/lib/traceevent/plugin_function.c @@ -43,11 +43,17 @@ static void add_child(struct func_stack *stack, const char *child, int pos) if (pos < stack->size) free(stack->stack[pos]); else { - if (!stack->stack) - stack->stack = malloc_or_die(sizeof(char *) * STK_BLK); - else - stack->stack = realloc(stack->stack, sizeof(char *) * - (stack->size + STK_BLK)); + char **ptr; + + ptr = realloc(stack->stack, sizeof(char *) * + (stack->size + STK_BLK)); + if (!ptr) { + warning("could not allocate plugin memory\n"); + return; + } + + stack->stack = ptr; + for (i = stack->size; i < stack->size + STK_BLK; i++) stack->stack[i] = NULL; stack->size += STK_BLK; @@ -64,10 +70,15 @@ static int add_and_get_index(const char *parent, const char *child, int cpu) return 0; if (cpu > cpus) { - if (fstack) - fstack = realloc(fstack, sizeof(*fstack) * (cpu + 1)); - else - fstack = malloc_or_die(sizeof(*fstack) * (cpu + 1)); + struct func_stack *ptr; + + ptr = realloc(fstack, sizeof(*fstack) * (cpu + 1)); + if (!ptr) { + warning("could not allocate plugin memory\n"); + return 0; + } + + fstack = ptr; /* Account for holes in the cpu count */ for (i = cpus + 1; i <= cpu; i++) -- 1.8.1.4
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