mtd: onenand: remove unused variable assignments

These variable assignments are never used (the variables are either
never used or are overwritten before use). This resolves some compiler
warnings like the following:

    drivers/mtd/onenand/onenand_base.c: In function 'flexonenand_get_boundary':
    drivers/mtd/onenand/onenand_base.c:3532:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
    drivers/mtd/onenand/onenand_base.c: In function 'onenand_probe':
    drivers/mtd/onenand/onenand_base.c:3838:6: warning: variable 'maf_id' set but not used [-Wunused-but-set-variable]

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>

diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 7b7c1d2..1de33b5 100644 (file)
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -3525,7 +3525,7 @@ static int flexonenand_get_boundary(struct mtd_info *mtd)
 {
        struct onenand_chip *this = mtd->priv;
        unsigned die, bdry;
-       int ret, syscfg, locked;
+       int syscfg, locked;
 
        /* Disable ECC */
        syscfg = this->read_word(this->base + ONENAND_REG_SYS_CFG1);
@@ -3536,7 +3536,7 @@ static int flexonenand_get_boundary(struct mtd_info *mtd)
                this->wait(mtd, FL_SYNCING);
 
                this->command(mtd, FLEXONENAND_CMD_READ_PI, die, 0);
-               ret = this->wait(mtd, FL_READING);
+               this->wait(mtd, FL_READING);
 
                bdry = this->read_word(this->base + ONENAND_DATARAM);
                if ((bdry >> FLEXONENAND_PI_UNLOCK_SHIFT) == 3)
@@ -3546,7 +3546,7 @@ static int flexonenand_get_boundary(struct mtd_info *mtd)
                this->boundary[die] = bdry & FLEXONENAND_PI_MASK;
 
                this->command(mtd, ONENAND_CMD_RESET, 0, 0);
-               ret = this->wait(mtd, FL_RESETING);
+               this->wait(mtd, FL_RESETING);
 
                printk(KERN_INFO "Die %d boundary: %d%s\n", die,
                       this->boundary[die], locked ? "(Locked)" : "(Unlocked)");
@@ -3730,7 +3730,7 @@ static int flexonenand_set_boundary(struct mtd_info *mtd, int die,
 
        /* Check is boundary is locked */
        this->command(mtd, FLEXONENAND_CMD_READ_PI, die, 0);
-       ret = this->wait(mtd, FL_READING);
+       this->wait(mtd, FL_READING);
 
        thisboundary = this->read_word(this->base + ONENAND_DATARAM);
        if ((thisboundary >> FLEXONENAND_PI_UNLOCK_SHIFT) != 3) {
@@ -3831,7 +3831,7 @@ static int onenand_chip_probe(struct mtd_info *mtd)
 static int onenand_probe(struct mtd_info *mtd)
 {
        struct onenand_chip *this = mtd->priv;
-       int maf_id, dev_id, ver_id;
+       int dev_id, ver_id;
        int density;
        int ret;
 
@@ -3839,8 +3839,7 @@ static int onenand_probe(struct mtd_info *mtd)
        if (ret)
                return ret;
 
-       /* Read manufacturer and device IDs from Register */
-       maf_id = this->read_word(this->base + ONENAND_REG_MANUFACTURER_ID);
+       /* Device and version IDs from Register */
        dev_id = this->read_word(this->base + ONENAND_REG_DEVICE_ID);
        ver_id = this->read_word(this->base + ONENAND_REG_VERSION_ID);
        this->technology = this->read_word(this->base + ONENAND_REG_TECHNOLOGY);