[PATCH] blktrace: pdu_buf of pc events should be unsigned

[Li Zefan]

I got this:
  8,0    1   305.417782332  2037  I   R 32 (ffffff9e 10 00 ...) [bash]

It should be:
  8,0    1   305.417782332  2037  I   R 32 (9e 10 00 ...) [bash]

[ Impact: fix output of pc events ]

Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
---
 kernel/trace/blktrace.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index c223cd1..9c5a951 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -1071,7 +1071,7 @@ static int blk_log_action(struct trace_iterator *iter, const char *act)
 
 static int blk_log_dump_pdu(struct trace_seq *s, const struct trace_entry *ent)
 {
-	const char *pdu_buf;
+	const unsigned char *pdu_buf;
 	int pdu_len;
 	int i, end, ret;
 
-- 
1.5.4.rc3

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