mtd: sm_ftl: Fix typo in comment in sm_read_lba

s/is/if/

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

Author: toblux

drivers/mtd/sm_ftl.c

@@ -156,7 +156,7 @@ static int sm_read_lba(struct sm_oob *oob)
 	if (!memcmp(oob, erased_pattern, SM_OOB_SIZE))
 		return -1;
 
-	/* Now check is both copies of the LBA differ too much */
+	/* Now check if both copies of the LBA differ too much */
 	lba_test = *(uint16_t *)oob->lba_copy1 ^ *(uint16_t*)oob->lba_copy2;
 	if (lba_test && !is_power_of_2(lba_test))
 		return -2;