4.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Takashi Iwai <tiwai@xxxxxxx> commit b748f2de4b2f578599f46c6000683a8da755bf68 upstream. The edac_mem_types[] array misses a MEM_LRDDR4 entry, which leads to NULL pointer dereference when accessed via sysfs or such. Signed-off-by: Takashi Iwai <tiwai@xxxxxxx> Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> Cc: Yazen Ghannam <Yazen.Ghannam@xxxxxxx> Cc: linux-edac <linux-edac@xxxxxxxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> Link: http://lkml.kernel.org/r/20180810141426.8918-1-tiwai@xxxxxxx Fixes: 1e8096bb2031 ("EDAC: Add LRDDR4 DRAM type") Signed-off-by: Borislav Petkov <bp@xxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/edac/edac_mc.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -215,6 +215,7 @@ const char * const edac_mem_types[] = { [MEM_LRDDR3] = "Load-Reduced-DDR3-RAM", [MEM_DDR4] = "Unbuffered-DDR4", [MEM_RDDR4] = "Registered-DDR4", + [MEM_LRDDR4] = "Load-Reduced-DDR4-RAM", [MEM_NVDIMM] = "Non-volatile-RAM", }; EXPORT_SYMBOL_GPL(edac_mem_types);
