[PATCH] tracing/kprobes: fix probe parsing

[Heiko Carstens <heiko.carstens@de.ibm.com>]

From: Heiko Carstens <heiko.carstens@de.ibm.com>

Trying to add a probe like

echo p:myprobe 0x10000 > /sys/kernel/debug/tracing/kprobe_events

will fail since the wrong pointer is passed to strict_strtoul
when trying to convert the address to an unsigned long.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
---
 kernel/trace/trace_kprobe.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -689,7 +689,7 @@ static int create_trace_probe(int argc, 
 			return -EINVAL;
 		}
 		/* an address specified */
-		ret = strict_strtoul(&argv[0][2], 0, (unsigned long *)&addr);
+		ret = strict_strtoul(&argv[1][0], 0, (unsigned long *)&addr);
 		if (ret) {
 			pr_info("Failed to parse address.\n");
 			return ret;