| From | Greg Kroah-Hartman <> | Subject | [ 073/103] uprobes: Fix return value in error handling path | Date | Tue, 23 Jul 2013 15:26:24 -0700 |
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3.10-stable review patch. If anyone has any objections, please let me know.
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From: "zhangwei(Jovi)" <jovi.zhangwei@huawei.com>
commit fa44063f9ef163c3a4c8d8c0465bb8a056b42035 upstream.
When wrong argument is passed into uprobe_events it does not return an error:
[root@jovi tracing]# echo 'p:myprobe /bin/bash' > uprobe_events [root@jovi tracing]#
The proper response is:
[root@jovi tracing]# echo 'p:myprobe /bin/bash' > uprobe_events -bash: echo: write error: Invalid argument
Link: http://lkml.kernel.org/r/51B964FF.5000106@huawei.com
Signed-off-by: zhangwei(Jovi) <jovi.zhangwei@huawei.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: <srikar@linux.vnet.ibm.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- kernel/trace/trace_uprobe.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/kernel/trace/trace_uprobe.c +++ b/kernel/trace/trace_uprobe.c @@ -283,8 +283,10 @@ static int create_trace_uprobe(int argc, return -EINVAL; } arg = strchr(argv[1], ':'); - if (!arg) + if (!arg) { + ret = -EINVAL; goto fail_address_parse; + } *arg++ = '\0'; filename = argv[1];
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