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tile-srom: switch to fixed_size_llseek()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-06-23 12:43:48 +04:00
parent b33159b7d2
commit 914961aac0
1 changed files with 3 additions and 25 deletions
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28
drivers/char/tile-srom.c
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@ -273,32 +273,10 @@ static ssize_t srom_write(struct file *filp, const char __user *buf,
} }
/* Provide our own implementation so we can use srom->total_size. */ /* Provide our own implementation so we can use srom->total_size. */
loff_t srom_llseek(struct file *filp, loff_t offset, int origin) loff_t srom_llseek(struct file *file, loff_t offset, int origin)
{ {
struct srom_dev *srom = filp->private_data; struct srom_dev *srom = file->private_data;
return fixed_size_llseek(file, offset, origin, srom->total_size);
if (mutex_lock_interruptible(&srom->lock))
return -ERESTARTSYS;
switch (origin) {
case SEEK_END:
offset += srom->total_size;
break;
case SEEK_CUR:
offset += filp->f_pos;
break;
}
if (offset < 0 || offset > srom->total_size) {
offset = -EINVAL;
} else {
filp->f_pos = offset;
filp->f_version = 0;
}
mutex_unlock(&srom->lock);
return offset;
} }
static ssize_t total_show(struct device *dev, static ssize_t total_show(struct device *dev,