osst: update ppos instead of using file->f_pos

osst_read()/osst_write() modify file->f_pos directly instead of the ppos
given to them.  The VFS later updates the file->f_pos and overwrites it
with the value of ppos.

Signed-off-by: Jan Blunck <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Willem Riede <[email protected]>
Cc: James Bottomley <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Jan Blunck 2010-05-26 14:44:44 -07:00 • committed by Linus Torvalds
commit e1c54b6402

View file

@ -3587,7 +3587,7 @@ if (SRpnt) printk(KERN_ERR "%s:A: Not supposed to have SRpnt at line %d\n", name
if (i == (-ENOSPC)) {
transfer = STp->buffer->writing; /* FIXME -- check this logic */
if (transfer <= do_count) {
filp->f_pos += do_count - transfer;
*ppos += do_count - transfer;
count -= do_count - transfer;
if (STps->drv_block >= 0) {
STps->drv_block += (do_count - transfer) / STp->block_size;
@ -3625,7 +3625,7 @@ if (SRpnt) printk(KERN_ERR "%s:A: Not supposed to have SRpnt at line %d\n", name
goto out;
}
filp->f_pos += do_count;
*ppos += do_count;
b_point += do_count;
count -= do_count;
if (STps->drv_block >= 0) {
@ -3647,7 +3647,7 @@ if (SRpnt) printk(KERN_ERR "%s:A: Not supposed to have SRpnt at line %d\n", name
if (STps->drv_block >= 0) {
STps->drv_block += blks;
}
filp->f_pos += count;
*ppos += count;
count = 0;
}
@ -3823,7 +3823,7 @@ static ssize_t osst_read(struct file * filp, char __user * buf, size_t count, lo
}
STp->logical_blk_num += transfer / STp->block_size;
STps->drv_block += transfer / STp->block_size;
filp->f_pos += transfer;
*ppos += transfer;
buf += transfer;
total += transfer;
}