diff options
Diffstat (limited to 'src/device/dram/ddr3.c')
| -rw-r--r-- | src/device/dram/ddr3.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/device/dram/ddr3.c b/src/device/dram/ddr3.c index 9e11ab57cc06..1fa3f4c3b2ba 100644 --- a/src/device/dram/ddr3.c +++ b/src/device/dram/ddr3.c @@ -422,6 +422,8 @@ int spd_xmp_decode_ddr3(struct dimm_attr_ddr3_st *dimm, spd_raw_data spd, /* Medium Timebase = * Medium Timebase (MTB) Dividend / * Medium Timebase (MTB) Divisor */ + if (spd[181] == 0) // Avoid dividing by zero. + return SPD_STATUS_INVALID; mtb = (((u32)spd[180]) << 8) / spd[181]; dimm->dimms_per_channel = ((spd[178] >> 2) & 0x3) + 1; @@ -437,6 +439,8 @@ int spd_xmp_decode_ddr3(struct dimm_attr_ddr3_st *dimm, spd_raw_data spd, /* Medium Timebase = * Medium Timebase (MTB) Dividend / * Medium Timebase (MTB) Divisor */ + if (spd[183] == 0) // Avoid dividing by zero. + return SPD_STATUS_INVALID; mtb = (((u32)spd[182]) << 8) / spd[183]; dimm->dimms_per_channel = ((spd[178] >> 4) & 0x3) + 1; |