diff options
| author | YueHaibing <yuehaibing@huawei.com> | 2020-09-10 11:26:36 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-09-15 17:52:43 -0400 |
| commit | d75fa679b056375494501ad47ea98fca5d712ff0 (patch) | |
| tree | 33ad2021e7b72e7b6a3a64a57831a93f6198eb09 | |
| parent | d56b83f7c1a42c27fe499be2fb5c75a038459c04 (diff) | |
drm/amd/display: Fix possible memleak in dp_trigger_hotplug()
If parse_write_buffer_into_params() fails, we should free
wr_buf before return.
Fixes: 6f77b2ac6280 ("drm/amd/display: Add connector HPD trigger debugfs entry")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c index 9be2f291382d..47cc39ad47f9 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c @@ -1093,8 +1093,10 @@ static ssize_t dp_trigger_hotplug(struct file *f, const char __user *buf, if (parse_write_buffer_into_params(wr_buf, size, (long *)param, buf, max_param_num, - ¶m_nums)) + ¶m_nums)) { + kfree(wr_buf); return -EINVAL; + } if (param_nums <= 0) { DRM_DEBUG_DRIVER("user data not be read\n"); |