[PATCH 04/12] video/hmdi: Clear the whole incoming buffer, not just the infoframe size

[Damien Lespiau]

If the user if this API is providing a bigger buffer than the infoframe
size, it could be for a could reason. For instance it could be because
it gives the buffer that will be written to the hardware, up to the
maximum of an infoframe size.

Instead of just zeroing up to the infoframe size, let's zero the whole
incoming buffer as those extra bytes are also used to compute the
ECC and need to be 0.

Signed-off-by: Damien Lespiau <damien.lespiau at intel.com>
---
 drivers/video/hdmi.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/video/hdmi.c b/drivers/video/hdmi.c
index f7a85e5..635d569 100644
--- a/drivers/video/hdmi.c
+++ b/drivers/video/hdmi.c
@@ -84,7 +84,7 @@ ssize_t hdmi_avi_infoframe_pack(struct hdmi_avi_infoframe *frame, void *buffer,
 	if (size < length)
 		return -ENOSPC;
 
-	memset(buffer, 0, length);
+	memset(buffer, 0, size);
 
 	ptr[0] = frame->type;
 	ptr[1] = frame->version;
@@ -186,7 +186,7 @@ ssize_t hdmi_spd_infoframe_pack(struct hdmi_spd_infoframe *frame, void *buffer,
 	if (size < length)
 		return -ENOSPC;
 
-	memset(buffer, 0, length);
+	memset(buffer, 0, size);
 
 	ptr[0] = frame->type;
 	ptr[1] = frame->version;
@@ -251,7 +251,7 @@ ssize_t hdmi_audio_infoframe_pack(struct hdmi_audio_infoframe *frame,
 	if (size < length)
 		return -ENOSPC;
 
-	memset(buffer, 0, length);
+	memset(buffer, 0, size);
 
 	if (frame->channels >= 2)
 		channels = frame->channels - 1;
@@ -308,7 +308,7 @@ ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame,
 	if (size < length)
 		return -ENOSPC;
 
-	memset(buffer, 0, length);
+	memset(buffer, 0, size);
 
 	ptr[0] = frame->type;
 	ptr[1] = frame->version;
-- 
1.8.3.1