From d260e8ff5195d3080cc11ae1f35cf4e6eb1a5d24 Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Wed, 6 Nov 2019 09:33:09 +0000 Subject: [PATCH] EDAC/mc: Do not BUG_ON() in edac_mc_alloc() No need to crash the system in case edac_mc_alloc() is called with invalid arguments, just warn and return. This would cause a checkpatch warning when touching the code later, so just fix it. Signed-off-by: Robert Richter Signed-off-by: Borislav Petkov Reviewed-by: Mauro Carvalho Chehab Cc: "linux-edac@vger.kernel.org" Cc: James Morse Cc: Tony Luck Link: https://lkml.kernel.org/r/20191106093239.25517-5-rrichter@marvell.com --- drivers/edac/edac_mc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index 88e24ece3e1e..6b3c4a65c9c8 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -323,7 +323,8 @@ struct mem_ctl_info *edac_mc_alloc(unsigned int mc_num, int i, j, row, chn, n, len; bool per_rank = false; - BUG_ON(n_layers > EDAC_MAX_LAYERS || n_layers == 0); + if (WARN_ON(n_layers > EDAC_MAX_LAYERS || n_layers == 0)) + return NULL; /* * Calculate the total amount of dimms and csrows/cschannels while