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oprofile: make event buffer nonseekable

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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>
This commit is contained in:
Arnd Bergmann 2010-07-07 17:40:13 -04:00 committed by Robert Richter
parent b12eab1a79
commit 729419f009
1 changed files with 2 additions and 1 deletions
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3
drivers/oprofile/event_buffer.c
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@ -135,7 +135,7 @@ static int event_buffer_open(struct inode *inode, struct file *file)
* echo 1 >/dev/oprofile/enable * echo 1 >/dev/oprofile/enable
*/ */
return 0; return nonseekable_open(inode, file);
fail: fail:
dcookie_unregister(file->private_data); dcookie_unregister(file->private_data);
@ -205,4 +205,5 @@ const struct file_operations event_buffer_fops = {
.open = event_buffer_open, .open = event_buffer_open,
.release = event_buffer_release, .release = event_buffer_release,
.read = event_buffer_read, .read = event_buffer_read,
.llseek = no_llseek,
}; };