diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2010-07-07 23:40:13 +0200 |
|---|---|---|
| committer | Robert Richter <robert.richter@amd.com> | 2010-07-26 10:58:24 +0200 |
| commit | 729419f0090601406abe714c5f8872a3bd53ff68 (patch) | |
| tree | 6d6a2b9085ff174163f174ea53759b6e04700c91 | |
| parent | powerpc/oprofile: fix potential buffer overrun in op_model_cell.c (diff) | |
| download | linux-729419f0090601406abe714c5f8872a3bd53ff68.tar.xz linux-729419f0090601406abe714c5f8872a3bd53ff68.zip | |
oprofile: make event buffer nonseekable
The event buffer cannot deal with seeks, so
we should forbid that outright.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Robert Richter <robert.richter@amd.com>
Cc: oprofile-list@lists.sf.net
Signed-off-by: Robert Richter <robert.richter@amd.com>
| -rw-r--r-- | drivers/oprofile/event_buffer.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c index 5df60a6b6776..dd87e86048be 100644 --- a/drivers/oprofile/event_buffer.c +++ b/drivers/oprofile/event_buffer.c @@ -135,7 +135,7 @@ static int event_buffer_open(struct inode *inode, struct file *file) * echo 1 >/dev/oprofile/enable */ - return 0; + return nonseekable_open(inode, file); fail: dcookie_unregister(file->private_data); @@ -205,4 +205,5 @@ const struct file_operations event_buffer_fops = { .open = event_buffer_open, .release = event_buffer_release, .read = event_buffer_read, + .llseek = no_llseek, }; |