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| author |   Alexander Shishkin <alexander.shishkin@linux.intel.com> | 2016-04-08 17:36:04 +0300 |
|---|---|---|
| committer | Alexander Shishkin <alexander.shishkin@linux.intel.com> | 2016-04-08 17:43:34 +0300 |
| commit | 8e9a2beb5f991916e530184957c4137fab14604c (patch) | |
| tree | e07d9f0617bf95741aa7dd131164eb9f2295d44e /drivers/hwtracing/intel_th | |
| parent | intel_th: Hold output driver module reference while capture is active (diff) | |
| download | linux-dev-8e9a2beb5f991916e530184957c4137fab14604c.tar.xz linux-dev-8e9a2beb5f991916e530184957c4137fab14604c.zip | |
intel_th: msu: Set fops::owner to prevent module from unloading
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@linux.intel.com>
Reviewed-by: Laurent Fert <laurent.fert@intel.com>
Diffstat (limited to 'drivers/hwtracing/intel_th')
| -rw-r--r-- | drivers/hwtracing/intel_th/msu.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c index ee153067e136..bcc3b4713377 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) |