Merge "DRM: SDE: Fix potential buffer overflow in SDE encoder"

/* timeout in frames waiting for frame done */

#define SDE_ENCODER_FRAME_DONE_TIMEOUT	60

#define MISR_BUFF_SIZE	256

/*

 * Two to anticipate panels that can do cmd/vid dynamic switching

 * plan is to create all possible physical encoder types, and switch between

	struct sde_encoder_virt *sde_enc;

	struct drm_encoder *drm_enc;

	int i = 0;

	char buf[10];

	char buf[MISR_BUFF_SIZE + 1];

	size_t buff_copy;

	u32 enable, frame_count;

	drm_enc = file->private_data;

	sde_enc = to_sde_encoder_virt(drm_enc);

	if (copy_from_user(buf, user_buf, count))

		return -EFAULT;

	buff_copy = min_t(size_t, MISR_BUFF_SIZE, count);

	if (copy_from_user(buf, user_buf, buff_copy))

		return -EINVAL;

	buf[count] = 0; /* end of string */

	buf[buff_copy] = 0; /* end of string */

	if (sscanf(buf, "%u %u", &enable, &frame_count) != 2)

		return -EFAULT;