lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ps3flash: switch to generic_file_llseek_size()

Browse Source 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2013-06-17 10:05:35 +04:00
parent 05c8aaa960
commit ee32465249
1 changed files with 2 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
drivers/char/ps3flash.c
View File

@@ -98,32 +98,8 @@ static int ps3flash_fetch(struct ps3_storage_device *dev, u64 start_sector)
static loff_t ps3flash_llseek(struct file *file, loff_t offset, int origin) static loff_t ps3flash_llseek(struct file *file, loff_t offset, int origin)
{ {
struct ps3_storage_device *dev = ps3flash_dev; struct ps3_storage_device *dev = ps3flash_dev;
loff_t res; return generic_file_llseek_size(file, offset, origin, MAX_LFS_FILESIZE,
dev->regions[dev->region_idx].size*dev->blk_size);
mutex_lock(&file->f_mapping->host->i_mutex);
switch (origin) {
case 0:
break;
case 1:
offset += file->f_pos;
break;
case 2:
offset += dev->regions[dev->region_idx].size*dev->blk_size;
break;
default:
offset = -1;
}
if (offset < 0) {
res = -EINVAL;
goto out;
}
file->f_pos = offset;
res = file->f_pos;
out:
mutex_unlock(&file->f_mapping->host->i_mutex);
return res;
} }
static ssize_t ps3flash_read(char __user *userbuf, void *kernelbuf, static ssize_t ps3flash_read(char __user *userbuf, void *kernelbuf,