[PATCH v4 13/58] mtd: nand: cs553x: use the mtd instance embedded in struct nand_chip
Boris Brezillon
boris.brezillon at free-electrons.com
Wed Dec 9 23:59:57 PST 2015
struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon at free-electrons.com>
---
drivers/mtd/nand/cs553x_nand.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
diff --git a/drivers/mtd/nand/cs553x_nand.c b/drivers/mtd/nand/cs553x_nand.c
index 8904d68..386ae83 100644
--- a/drivers/mtd/nand/cs553x_nand.c
+++ b/drivers/mtd/nand/cs553x_nand.c
@@ -197,14 +197,13 @@ static int __init cs553x_init_one(int cs, int mmio, unsigned long adr)
}
/* Allocate memory for MTD device structure and private data */
- new_mtd = kzalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);
- if (!new_mtd) {
+ this = kzalloc(sizeof(struct nand_chip), GFP_KERNEL);
+ if (!this) {
err = -ENOMEM;
goto out;
}
- /* Get pointer to private data */
- this = (struct nand_chip *)(&new_mtd[1]);
+ new_mtd = nand_to_mtd(this);
/* Link the private data with the MTD structure */
new_mtd->priv = this;
@@ -257,7 +256,7 @@ out_free:
out_ior:
iounmap(this->IO_ADDR_R);
out_mtd:
- kfree(new_mtd);
+ kfree(this);
out:
return err;
}
@@ -337,19 +336,19 @@ static void __exit cs553x_cleanup(void)
if (!mtd)
continue;
- this = mtd_to_nand(cs553x_mtd[i]);
+ this = mtd_to_nand(mtd);
mmio_base = this->IO_ADDR_R;
/* Release resources, unregister device */
- nand_release(cs553x_mtd[i]);
- kfree(cs553x_mtd[i]->name);
+ nand_release(mtd);
+ kfree(mtd->name);
cs553x_mtd[i] = NULL;
/* unmap physical address */
iounmap(mmio_base);
/* Free the MTD device structure */
- kfree(mtd);
+ kfree(this);
}
}
--
2.1.4
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