[patch] Staging: lirc: remove unneeded variable

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We never use control_req so I removed it.

Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>

diff --git a/drivers/staging/lirc/lirc_imon.c b/drivers/staging/lirc/lirc_imon.c
index 6649325..cb5699c 100644
--- a/drivers/staging/lirc/lirc_imon.c
+++ b/drivers/staging/lirc/lirc_imon.c
@@ -320,7 +320,6 @@ static int send_packet(struct imon_context *context)
 	unsigned int pipe;
 	int interval = 0;
 	int retval = 0;
-	struct usb_ctrlrequest *control_req = NULL;
 
 	/* Check if we need to use control or interrupt urb */
 	pipe = usb_sndintpipe(context->usbdev,
@@ -355,8 +354,6 @@ static int send_packet(struct imon_context *context)
 			err("%s: packet tx failed (%d)", __func__, retval);
 	}
 
-	kfree(control_req);
-
 	return retval;
 }
 
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