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siihdmi: fix a division by zero when HDMI VSDB gives out 0 as the maximum TMDS clock capability

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This commit is contained in:
Matt Sealey
2012-04-19 13:55:52 -05:00
parent 37c5293a2e
commit ddc6441e13
1 changed files with 6 additions and 3 deletions
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9
drivers/video/mxc/siihdmi.c
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@@ -245,13 +245,16 @@ static int siihdmi_initialise(struct siihdmi_tx *tx)
static inline void _process_cea861_vsdb(struct siihdmi_tx *tx,
const struct hdmi_vsdb * const vsdb)
{
unsigned int max_tmds;
unsigned int max_tmds = 0;
if (memcmp(vsdb->ieee_registration, CEA861_OUI_REGISTRATION_ID_HDMI_LSB,
sizeof(vsdb->ieee_registration)))
sizeof(vsdb->ieee_registration))) {
WARNING("VSDB does not contain HDMI OUI\n");
return;
}
max_tmds = KHZ2PICOS(vsdb->max_tmds_clock * 200);
if (vsdb->max_tmds_clock)
max_tmds = KHZ2PICOS(vsdb->max_tmds_clock * 200);
DBG("HDMI VSDB detected (basic audio %ssupported)\n",
tx->audio.available ? "" : "not ");