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mtd: Few follow up cleanups for Smartmedia/xD support 

* Test results of few functions that were declared with __must_check
* Fix bogus gcc warning about uinitialized variable 'ret'
* Remove unused variable from mtdblock_remove_dev
* Don't use deprecated DMA_32BIT_MASK

Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Maxim Levitsky 2010-02-26 22:08:40 +02:00 committed by David Woodhouse
parent 67e054e919
commit 133fa8c7d7
4 changed files with 18 additions and 12 deletions
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6
drivers/mtd/mtd_blkdevs.c
View File

@ -380,9 +380,11 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)
add_disk(gd);
if (new->disk_attributes)
sysfs_create_group(&disk_to_dev(gd)->kobj,
if (new->disk_attributes) {
ret = sysfs_create_group(&disk_to_dev(gd)->kobj,
new->disk_attributes);
WARN_ON(ret);
}
return 0;
error4:
module_put(tr->owner);

1
drivers/mtd/mtdblock.c
View File

@ -354,7 +354,6 @@ static void mtdblock_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
static void mtdblock_remove_dev(struct mtd_blktrans_dev *dev)
{
struct mtdblk_dev *mtdblk = container_of(dev, struct mtdblk_dev, mbd);
del_mtd_blktrans_dev(dev);
}

6
drivers/mtd/nand/r852.c
View File

@ -654,7 +654,9 @@ int r852_register_nand_device(struct r852_device *dev)
if (sm_register_device(dev->mtd))
goto error2;
device_create_file(&dev->mtd->dev, &dev_attr_media_type);
if (device_create_file(&dev->mtd->dev, &dev_attr_media_type))
message("can't create media type sysfs attribute");
dev->card_registred = 1;
return 0;
error2:
@ -838,7 +840,7 @@ int r852_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
pci_set_master(pci_dev);
error = pci_set_dma_mask(pci_dev, DMA_32BIT_MASK);
error = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
if (error)
goto error2;

17
drivers/mtd/sm_ftl.c
View File

@ -228,7 +228,7 @@ static int sm_read_sector(struct sm_ftl *ftl,
struct mtd_info *mtd = ftl->trans->mtd;
struct mtd_oob_ops ops;
struct sm_oob tmp_oob;
int ret;
int ret = -EIO;
int try = 0;
/* FTL can contain -1 entries that are by default filled with bits */
@ -753,6 +753,7 @@ static int sm_init_zone(struct sm_ftl *ftl, int zone_num)
uint16_t block;
int lba;
int i = 0;
int len;
dbg("initializing zone %d", zone_num);
@ -856,7 +857,9 @@ static int sm_init_zone(struct sm_ftl *ftl, int zone_num)
i %= (kfifo_len(&zone->free_sectors) / 2);
while (i--) {
kfifo_out(&zone->free_sectors, (unsigned char *)&block, 2);
len = kfifo_out(&zone->free_sectors,
(unsigned char *)&block, 2);
WARN_ON(len != 2);
kfifo_in(&zone->free_sectors, (const unsigned char *)&block, 2);
}
return 0;
@ -947,17 +950,17 @@ restart:
if (ftl->unstable)
return -EIO;
/* No spare blocks */
/* We could still continue by erasing the current block,
/* If there are no spare blocks, */
/* we could still continue by erasing/writing the current block,
but for such worn out media it doesn't worth the trouble,
and the dangers */
if (!kfifo_len(&zone->free_sectors)) {
if (kfifo_out(&zone->free_sectors,
(unsigned char *)&write_sector, 2) != 2) {
dbg("no free sectors for write!");
return -EIO;
}
kfifo_out(&zone->free_sectors, (unsigned char *)&write_sector, 2);
if (sm_write_block(ftl, ftl->cache_data, zone_num, write_sector,
ftl->cache_block, ftl->cache_data_invalid_bitmap))