[patch] NFC: remove unneeded NULL check

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container_of() works by subtracting the offset of the member.  The math
can't really return a zero here.  Sometimes people check it when they
actually meant to check something else but in this case we can just
remove the check.

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index e6ec16d..2e11da0 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -394,9 +394,6 @@ static void pn533_wq_cmd_complete(struct work_struct *work)
 	struct pn533_frame *in_frame;
 	int rc;
 
-	if (dev == NULL)
-		return;
-
 	in_frame = dev->wq_in_frame;
 
 	if (dev->wq_in_error)
--
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