Commit-ID: 729419f0090601406abe714c5f8872a3bd53ff68
Gitweb: http://git.kernel.org/tip/729419f0090601406abe714c5f8872a3bd53ff68
Author: Arnd Bergmann <arnd@xxxxxxxx>
AuthorDate: Wed, 7 Jul 2010 17:40:13 -0400
Committer: Robert Richter <robert.richter@xxxxxxx>
CommitDate: Mon, 26 Jul 2010 10:58:24 +0200
oprofile: make event buffer nonseekable
The event buffer cannot deal with seeks, so
we should forbid that outright.
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Robert Richter <robert.richter@xxxxxxx>
Cc: oprofile-list@xxxxxxxxxxxx
Signed-off-by: Robert Richter <robert.richter@xxxxxxx>
---
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 5df60a6..dd87e86 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,
};
--
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