[QUEUED v20160408 17/18] intel_th: msu: Set fops::owner to prevent module from unloading

From: Alexander Shishkin
Date: Fri Apr 08 2016 - 10:58:47 EST


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>
---
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