Staging:wilc1000:wilc_spi: Fixed spelling error

Fixed spelling error. 'unkmown' to 'unknown'.
Signed-off-by: Georgios Emmanouil <geo.emmnl@gmail.com>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/wilc_spi.c

@@ -963,12 +963,12 @@ static int wilc_spi_read_int(struct wilc *wilc, u32 *int_status)
 				}
 
 				{
-					u32 unkmown_mask;
+					u32 unknown_mask;
 
-					unkmown_mask = ~((1ul << g_spi.nint) - 1);
+					unknown_mask = ~((1ul << g_spi.nint) - 1);
 
-					if ((tmp >> IRG_FLAGS_OFFSET) & unkmown_mask) {
-						dev_err(&spi->dev, "Unexpected interrupt (2): j=%d, tmp=%x, mask=%x\n", j, tmp, unkmown_mask);
+					if ((tmp >> IRG_FLAGS_OFFSET) & unknown_mask) {
+						dev_err(&spi->dev, "Unexpected interrupt (2): j=%d, tmp=%x, mask=%x\n", j, tmp, unknown_mask);
 						happended = 1;
 					}
 				}