[QUEUED v20160420 17/19] intel_th: msu: Set fops::owner to prevent module from unloading

[Alexander Shishkin]

Right now it's possible to unload the msu driver while its character
device is open. Prevent it by setting fops::owner, which will result
in the module reference being held while the device node is open.

Signed-off-by: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Reviewed-by: Laurent Fert <laurent.fert@xxxxxxxxx>
---
 drivers/hwtracing/intel_th/msu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c
index ee153067e1..bcc3b47133 100644
--- a/drivers/hwtracing/intel_th/msu.c
+++ b/drivers/hwtracing/intel_th/msu.c
@@ -1253,6 +1253,7 @@ static const struct file_operations intel_th_msc_fops = {
 	.read		= intel_th_msc_read,
 	.mmap		= intel_th_msc_mmap,
 	.llseek		= no_llseek,
+	.owner		= THIS_MODULE,
 };
 
 static int intel_th_msc_init(struct msc *msc)
-- 
2.8.0.rc3