[ 063/173] ftrace: Clear bits properly in reset_iter_read()

From: Ben Hutchings
Date: Fri Dec 28 2012 - 14:33:17 EST


3.2-stable review patch. If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

commit 70f77b3f7ec010ff9624c1f2e39a81babc9e2429 upstream.

There is a typo here where '&' is used instead of '|' and it turns the
statement into a noop. The original code is equivalent to:

iter->flags &= ~((1 << 2) & (1 << 4));

Link: http://lkml.kernel.org/r/20120609161027.GD6488@xxxxxxxxxxxxxx

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
kernel/trace/ftrace.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 9dcf15d..51b7159 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -2437,7 +2437,7 @@ static void reset_iter_read(struct ftrace_iterator *iter)
{
iter->pos = 0;
iter->func_pos = 0;
- iter->flags &= ~(FTRACE_ITER_PRINTALL & FTRACE_ITER_HASH);
+ iter->flags &= ~(FTRACE_ITER_PRINTALL | FTRACE_ITER_HASH);
}

static void *t_start(struct seq_file *m, loff_t *pos)


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