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authorIngo Molnar <mingo@elte.hu>2008-05-12 21:20:53 +0200
committerThomas Gleixner <tglx@linutronix.de>2008-05-23 21:08:12 +0200
commit442e544ce52d4415a024920b84fb95c5f9aa0855 (patch)
treec8b80e68d2d655732f1bdde79fa896c77d8d2c96 /kernel/trace
parentd9af56fbd8b37181bffaad060f74aa2e17382874 (diff)
ftrace: iter ctrl fix
Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/trace.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 3ae17e254fc..688b4cf72d9 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -1920,6 +1920,11 @@ tracing_iter_ctrl_write(struct file *filp, const char __user *ubuf,
break;
}
}
+ /*
+ * If no option could be set, return an error:
+ */
+ if (!trace_options[i])
+ return -EINVAL;
filp->f_pos += cnt;