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HDMI: 3288/3368: hdcp check firmware pointer.

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If firmware is NULL, HDCP is disabled.

Signed-off-by: Zheng Yang <zhengyang@rock-chips.com>
This commit is contained in:
Zheng Yang
2015-05-04 16:26:33 +08:00
parent e3eff0c124
commit 33dd452d61
1 changed files with 8 additions and 1 deletions
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9
drivers/video/rockchip/hdmi/rockchip-hdmiv2/rockchip_hdmiv2_hdcp.c
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@@ -88,6 +88,10 @@ static void hdcp_load_keys_cb(const struct firmware *fw,
{
struct hdmi *hdmi = (struct hdmi *)context;
if (fw == NULL) {
pr_info("HDCP: firmware is not loaded\n");
return;
}
if (fw->size < HDCP_KEY_SIZE) {
pr_err("HDCP: firmware wrong size %d\n", (int)fw->size);
return;
@@ -181,7 +185,10 @@ static ssize_t hdcp_enable_write(struct device *device,
if (hdcp == NULL)
return -EINVAL;
if (hdcp->keys == NULL) {
pr_err("HDCP: key is not loaded\n");
return -EINVAL;
}
if (kstrtoint(buf, 0, &enable))
return -EINVAL;