Skip to contentSkip to conversation

ghes_edac: use snprintf to make static checkers happy

PATCH New Dan Carpenter 1 participant 1 message Apr 30, 2013

Subsystems (3)
lore
Share & tools
lore
#0 lore raw

PATCH 1/1 ghes_edac: use snprintf to make static checkers happy

The destination buffer "pvt->detail_location" is 240 bytes. e->location is 80 bytes. e->other_detail is a pointer to pvt->other_detail which is 160 bytes. Then when we add in the prefix "APEI location: " we've gone over 240 bytes.

We can't actually hit the max but we may as well use snprintf() and silence the warning.

drivers/edac/ghes_edac.c +2 -2
index bb53467..b94d762 100644
@@ -403,8 +403,8 @@ void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
 
 	/* Generate the trace event */
 	grain_bits = fls_long(e->grain);
-	sprintf(pvt->detail_location, "APEI location: %s %s",
-		e->location, e->other_detail);
+	snprintf(pvt->detail_location, sizeof(pvt->detail_location),
+		 "APEI location: %s %s", e->location, e->other_detail);
 	trace_mc_event(type, e->msg, e->label, e->error_count,
 		       mci->mc_idx, e->top_layer, e->mid_layer, e->low_layer,
 		       PAGES_TO_MiB(e->page_frame_number) | e->offset_in_page,