From: Rosen Penev <rosenp@gmail.com>
Date: Tue, 17 Mar 2026 03:14:58 +0000 (-0700)
Subject: greybus: svc: use kzalloc_flex
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8ca3d3b1c3383f5f23efe01c3fd9113ed06007bd;p=thirdparty%2Fkernel%2Flinux.git

greybus: svc: use kzalloc_flex

Avoid manual sizeof math by using the proper helper.

Also use struct_size for the buffer size.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://patch.msgid.link/20260317031458.93315-1-rosenp@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/greybus/svc.c b/drivers/greybus/svc.c
index 1b854f53f21e2..490577731a190 100644
--- a/drivers/greybus/svc.c
+++ b/drivers/greybus/svc.c
@@ -775,10 +775,9 @@ static void gb_svc_pwrmon_debugfs_init(struct gb_svc *svc)
 	if (!rail_count || rail_count > GB_SVC_PWRMON_MAX_RAIL_COUNT)
 		goto err_pwrmon_debugfs;
 
-	bufsize = sizeof(*rail_names) +
-		GB_SVC_PWRMON_RAIL_NAME_BUFSIZE * rail_count;
+	bufsize = struct_size(rail_names, name, rail_count);
 
-	rail_names = kzalloc(bufsize, GFP_KERNEL);
+	rail_names = kzalloc_flex(*rail_names, name, rail_count);
 	if (!rail_names)
 		goto err_pwrmon_debugfs;