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carma-fpga: switch to fixed_size_llseek() 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2014-08-19 12:06:18 -04:00
parent 2ec3a12a66
commit 1a37f5ecb7
1 changed files with 1 additions and 20 deletions
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21
drivers/misc/carma/carma-fpga-program.c
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@ -767,26 +767,7 @@ static loff_t fpga_llseek(struct file *filp, loff_t offset, int origin)
if ((filp->f_flags & O_ACCMODE) != O_RDONLY) if ((filp->f_flags & O_ACCMODE) != O_RDONLY)
return -EINVAL; return -EINVAL;
switch (origin) { return fixed_size_llseek(file, offset, origin, priv->fw_size);
case SEEK_SET: /* seek relative to the beginning of the file */
newpos = offset;
break;
case SEEK_CUR: /* seek relative to current position in the file */
newpos = filp->f_pos + offset;
break;
case SEEK_END: /* seek relative to the end of the file */
newpos = priv->fw_size - offset;
break;
default:
return -EINVAL;
}
/* check for sanity */
if (newpos > priv->fw_size)
return -EINVAL;
filp->f_pos = newpos;
return newpos;
} }
static const struct file_operations fpga_fops = { static const struct file_operations fpga_fops = {