mailbox: arm_mhuv3: Remove no_free_ptr() to maintain the original form of the pointer

Remove no_free_ptr() to ensure PTR_ERR() consistently retrieves the correct
error code.

Signed-off-by: Liao Yuanhong <liaoyuanhong@vivo.com>
Acked-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>

drivers/mailbox/arm_mhuv3.c

@@ -945,7 +945,7 @@ static irqreturn_t mhuv3_mbx_comb_interrupt(int irq, void *arg)
 			if (IS_ERR(data)) {
 				dev_err(dev,
 					"Failed to read in-band data. err:%ld\n",
-					PTR_ERR(no_free_ptr(data)));
+					PTR_ERR(data));
 				goto rx_ack;
 			}
 		}