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 <namhy...@kernel.org>
Signed-off-by: Jiri Olsa <jo...@redhat.com>
Cc: Corey Ashford <cjash...@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Cc: Ingo Molnar <mi...@elte.hu>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
Cc: Arnaldo Carvalho de Melo <a...@ghostprotocols.net>
Cc: Steven Rostedt <rost...@goodmis.org>
Cc: David Ahern <dsah...@gmail.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 87acf9c..aad92ad 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++)
--
1.8.3.1
--
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