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Commit 67012ab1 authored by Chen Gang's avatar Chen Gang Committed by Ingo Molnar
Browse files

perf: Fix strncpy() use, use strlcpy() instead of strncpy() 



For NUL terminated string we always need to set '\0' at the end.

Signed-off-by: default avatarChen Gang <gang.chen@asianux.com>
Cc: rostedt@goodmis.org
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/51624254.30301@asianux.com


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent c97847d2

kernel/trace/trace.c

+2 −2
Original line number Original line Diff line number Diff line
@@ -132,7 +132,7 @@ static char *default_bootup_tracer; 




static int __init set_cmdline_ftrace(char *str)

static int __init set_cmdline_ftrace(char *str)

{

{

	strncpy(bootup_tracer_buf, str, MAX_TRACER_SIZE);

	strlcpy(bootup_tracer_buf, str, MAX_TRACER_SIZE);

	default_bootup_tracer = bootup_tracer_buf;

	default_bootup_tracer = bootup_tracer_buf;

	/* We are using ftrace early, expand it */

	/* We are using ftrace early, expand it */

	ring_buffer_expanded = 1;

	ring_buffer_expanded = 1;
@@ -162,7 +162,7 @@ static char *trace_boot_options __initdata; 




static int __init set_trace_boot_options(char *str)

static int __init set_trace_boot_options(char *str)

{

{

	strncpy(trace_boot_options_buf, str, MAX_TRACER_SIZE);

	strlcpy(trace_boot_options_buf, str, MAX_TRACER_SIZE);

	trace_boot_options = trace_boot_options_buf;

	trace_boot_options = trace_boot_options_buf;

	return 0;

	return 0;

}

}