linux-kernel - [PATCH 01/14] tools lib traceevent: Get rid of malloc_or_die() in show

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Date:	Mon,  9 Dec 2013 14:33:58 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Steven Rostedt <rostedt@...dmis.org>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...nel.org>, Jiri Olsa <jolsa@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Namhyung Kim <namhyung.kim@....com>
Subject: [PATCH 01/14] tools lib traceevent: Get rid of malloc_or_die() in show_error()

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/lib/traceevent/parse-filter.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 2500e75583fc..0fc905c230ad 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -56,7 +56,21 @@ static void show_error(char **error_str, const char *fmt, ...)
 	index = pevent_get_input_buf_ptr();
 	len = input ? strlen(input) : 0;
 
-	error = malloc_or_die(MAX_ERR_STR_SIZE + (len*2) + 3);
+	error = malloc(MAX_ERR_STR_SIZE + (len*2) + 3);
+	if (error == NULL) {
+		/*
+		 * Maybe it's due to len is too long.
+		 * Retry without the input buffer part.
+		 */
+		len = 0;
+
+		error = malloc(MAX_ERR_STR_SIZE);
+		if (error == NULL) {
+			/* no memory */
+			*error_str = "failed to allocate memory";
+			return;
+		}
+	}
 
 	if (len) {
 		strcpy(error, input);
-- 
1.7.11.7

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