diff options
| author | Ding Xiang <dingxiang@cmss.chinamobile.com> | 2019-08-21 10:49:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-06 10:19:51 +0200 |
| commit | dfc3195f6600c3fdca4416cea8fe8fb8894015b5 (patch) | |
| tree | 7955ac7a4dbc4481dff51113b08dba1699d0a051 /drivers/hwtracing | |
| parent | c7ed5c02e4101faef5e9d542aa3da4c4d63acaae (diff) | |
stm class: Fix a double free of stm_source_device
commit 961b6ffe0e2c403b09a8efe4a2e986b3c415391a upstream.
In the error path of stm_source_register_device(), the kfree is
unnecessary, as the put_device() before it ends up calling
stm_source_device_release() to free stm_source_device, leading to
a double free at the outer kfree() call. Remove it.
Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Fixes: 7bd1d4093c2fa ("stm class: Introduce an abstraction for System Trace Module devices")
Link: https://lore.kernel.org/linux-arm-kernel/1563354988-23826-1-git-send-email-dingxiang@cmss.chinamobile.com/
Cc: stable@vger.kernel.org # v4.4+
Link: https://lore.kernel.org/r/20190821074955.3925-2-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing')
| -rw-r--r-- | drivers/hwtracing/stm/core.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c index fd0ebec03ae7..beefec9701ed 100644 --- a/drivers/hwtracing/stm/core.c +++ b/drivers/hwtracing/stm/core.c @@ -1107,7 +1107,6 @@ int stm_source_register_device(struct device *parent, err: put_device(&src->dev); - kfree(src); return err; } |