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dm: sandbox: Prepare block driver for driver-model conversion 

Make a few minor changes to make it easier to add driver-model support.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
utp
Simon Glass 2016-02-29 15:25:56 -07:00
parent 09d71aac7b
commit 7ded959e4d
1 changed files with 14 additions and 16 deletions
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30
drivers/block/sandbox.c
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@ -31,16 +31,15 @@ static unsigned long host_block_read(struct blk_desc *block_dev,
if (!host_dev)
return -1;
if (os_lseek(host_dev->fd,
start * host_dev->blk_dev.blksz,
OS_SEEK_SET) == -1) {
printf("ERROR: Invalid position\n");
if (os_lseek(host_dev->fd, start * block_dev->blksz, OS_SEEK_SET) ==
-1) {
printf("ERROR: Invalid block %lx\n", start);
return -1;
}
ssize_t len = os_read(host_dev->fd, buffer,
blkcnt * host_dev->blk_dev.blksz);
ssize_t len = os_read(host_dev->fd, buffer, blkcnt * block_dev->blksz);
if (len >= 0)
return len / host_dev->blk_dev.blksz;
return len / block_dev->blksz;
return -1;
}
@ -50,16 +49,15 @@ static unsigned long host_block_write(struct blk_desc *block_dev,
{
int dev = block_dev->devnum;
struct host_block_dev *host_dev = find_host_device(dev);
if (os_lseek(host_dev->fd,
start * host_dev->blk_dev.blksz,
OS_SEEK_SET) == -1) {
printf("ERROR: Invalid position\n");
if (os_lseek(host_dev->fd, start * block_dev->blksz, OS_SEEK_SET) ==
-1) {
printf("ERROR: Invalid block %lx\n", start);
return -1;
}
ssize_t len = os_write(host_dev->fd, buffer, blkcnt *
host_dev->blk_dev.blksz);
ssize_t len = os_write(host_dev->fd, buffer, blkcnt * block_dev->blksz);
if (len >= 0)
return len / host_dev->blk_dev.blksz;
return len / block_dev->blksz;
return -1;
}
@ -103,9 +101,9 @@ int host_dev_bind(int dev, char *filename)
return 0;
}
int host_get_dev_err(int dev, struct blk_desc **blk_devp)
int host_get_dev_err(int devnum, struct blk_desc **blk_devp)
{
struct host_block_dev *host_dev = find_host_device(dev);
struct host_block_dev *host_dev = find_host_device(devnum);
if (!host_dev)
return -ENODEV;