Commit d75fa679 authored by YueHaibing's avatar YueHaibing Committed by Alex Deucher
Browse files

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: 6f77b2ac ("drm/amd/display: Add connector HPD trigger debugfs entry")
Reviewed-by: default avatarHarry Wentland <harry.wentland@amd.com>
Signed-off-by: default avatarYueHaibing <yuehaibing@huawei.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent d56b83f7

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c

+3 −1
Original line number Diff line number Diff line
@@ -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,

						&param_nums))

						&param_nums)) {

		kfree(wr_buf);

		return -EINVAL;

	}



	if (param_nums <= 0) {

		DRM_DEBUG_DRIVER("user data not be read\n");