raid5-ppl: silence a misleading warning message

The "need_cache_flush" variable is never set to false.  When the
variable is true that means we print a warning message at the end of
the function.

Fixes: 3418d036c81d ("raid5-ppl: Partial Parity Log write logging implementation")
Signed-off-by: Dan Carpenter <redacted>

diff --git a/drivers/md/raid5-ppl.c b/drivers/md/raid5-ppl.c
index 27bad3e2d7ce..86ea9addb51a 100644
--- a/drivers/md/raid5-ppl.c
+++ b/drivers/md/raid5-ppl.c

@@ -1070,7 +1070,7 @@ int ppl_init_log(struct r5conf *conf)
 	struct mddev *mddev = conf->mddev;
 	int ret = 0;
 	int i;
-	bool need_cache_flush;
+	bool need_cache_flush = false;
 
 	pr_debug("md/raid:%s: enabling distributed Partial Parity Log\n",
 		 mdname(conf->mddev));

On 03/21/2017 09:43 PM, Dan Carpenter wrote:

The "need_cache_flush" variable is never set to false.  When the
variable is true that means we print a warning message at the end of
the function.

Fixes: 3418d036c81d ("raid5-ppl: Partial Parity Log write logging implementation")
Signed-off-by: Dan Carpenter <redacted>

Good catch, thanks. I thought gcc would warn about such issues, I'll
have to be more careful.

Reviewed-by: Artur Paszkiewicz <redacted>

On Tue, Mar 21, 2017 at 11:43:05PM +0300, Dan Carpenter wrote:

The "need_cache_flush" variable is never set to false.  When the
variable is true that means we print a warning message at the end of
the function.

Fixes: 3418d036c81d ("raid5-ppl: Partial Parity Log write logging implementation")
Signed-off-by: Dan Carpenter <redacted>

applied, thanks!