staging: rtl8192e: Change parameter "ch" of set_chan() to u8

Change parameter "ch" of set_chan() to u8 to combine functions in the
following patch.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/4a76c0e2384d67410d383fdf860d0e0859555d1e.1700296319.git.philipp.g.hortmann@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtl8192e/rtl_core.c

@@ -226,7 +226,7 @@ static void _rtl92e_tx_timeout(struct net_device *dev, unsigned int txqueue)
 	netdev_info(dev, "TXTIMEOUT");
 }
 
-static void _rtl92e_set_chan(struct net_device *dev, short ch)
+static void _rtl92e_set_chan(struct net_device *dev, u8 ch)
 {
 	struct r8192_priv *priv = rtllib_priv(dev);
 

drivers/staging/rtl8192e/rtllib.h

@@ -1469,7 +1469,7 @@ struct rtllib_device {
 	 * This function can sleep. the driver should ensure
 	 * the radio has been switched before return.
 	 */
-	void (*set_chan)(struct net_device *dev, short ch);
+	void (*set_chan)(struct net_device *dev, u8 ch);
 
 	/* indicate the driver that the link state is changed
 	 * for example it may indicate the card is associated now.