diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-07-30 19:36:55 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-07-30 19:36:55 +0200 |
commit | bc588df79ebfb710abc27342fccf336a68ed1216 (patch) | |
tree | e50e125eaa6da83fa715704e53c1bde013d1ef8e /fs/binfmt_misc.c | |
parent | bce7f793daec3e65ec5c5705d2457b81fe7b5725 (diff) | |
parent | 15dd859cacf312f606f54502d1f66537a1e5c78c (diff) |
Merge branch 'x86/core' into x86/xsave
Diffstat (limited to 'fs/binfmt_misc.c')
-rw-r--r-- | fs/binfmt_misc.c | 20 |
1 files changed, 3 insertions, 17 deletions
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c index 7191306367c..756205314c2 100644 --- a/fs/binfmt_misc.c +++ b/fs/binfmt_misc.c @@ -27,6 +27,7 @@ #include <linux/namei.h> #include <linux/mount.h> #include <linux/syscalls.h> +#include <linux/fs.h> #include <asm/uaccess.h> @@ -535,31 +536,16 @@ static ssize_t bm_entry_read(struct file * file, char __user * buf, size_t nbytes, loff_t *ppos) { Node *e = file->f_path.dentry->d_inode->i_private; - loff_t pos = *ppos; ssize_t res; char *page; - int len; if (!(page = (char*) __get_free_page(GFP_KERNEL))) return -ENOMEM; entry_status(e, page); - len = strlen(page); - res = -EINVAL; - if (pos < 0) - goto out; - res = 0; - if (pos >= len) - goto out; - if (len < pos + nbytes) - nbytes = len - pos; - res = -EFAULT; - if (copy_to_user(buf, page + pos, nbytes)) - goto out; - *ppos = pos + nbytes; - res = nbytes; -out: + res = simple_read_from_buffer(buf, nbytes, ppos, page, strlen(page)); + free_page((unsigned long) page); return res; } |