[PATCH] matroxfb: avoid -Warray-bounds warning
From: Arnd Bergmann <arnd@kernel.org>
Date: 2020-10-26 19:40:24
Also in:
dri-devel, lkml
Subsystem:
framebuffer layer, matrox framebuffer driver, the rest · Maintainers:
Helge Deller, Linus Torvalds
From: Arnd Bergmann <arnd@arndb.de>
The open-coded list_for_each_entry() causes a harmless warning:
drivers/video/fbdev/matrox/matroxfb_base.c: In function 'matroxfb_register_driver':
include/linux/kernel.h:856:3: warning: array subscript -98 is outside array bounds of 'struct list_head[1]' [-Warray-bounds]
Use the normal list_for_each_entry instead.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/video/fbdev/matrox/matroxfb_base.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/video/fbdev/matrox/matroxfb_base.c b/drivers/video/fbdev/matrox/matroxfb_base.c
index 570439b32655..a3853421b263 100644
--- a/drivers/video/fbdev/matrox/matroxfb_base.c
+++ b/drivers/video/fbdev/matrox/matroxfb_base.c@@ -1970,9 +1970,7 @@ int matroxfb_register_driver(struct matroxfb_driver* drv) { struct matrox_fb_info* minfo; list_add(&drv->node, &matroxfb_driver_list); - for (minfo = matroxfb_l(matroxfb_list.next); - minfo != matroxfb_l(&matroxfb_list); - minfo = matroxfb_l(minfo->next_fb.next)) { + list_for_each_entry(minfo, &matroxfb_list, next_fb) { void* p; if (minfo->drivers_count == MATROXFB_MAX_FB_DRIVERS)
@@ -1990,9 +1988,7 @@ void matroxfb_unregister_driver(struct matroxfb_driver* drv) { struct matrox_fb_info* minfo; list_del(&drv->node); - for (minfo = matroxfb_l(matroxfb_list.next); - minfo != matroxfb_l(&matroxfb_list); - minfo = matroxfb_l(minfo->next_fb.next)) { + list_for_each_entry(minfo, &matroxfb_list, next_fb) { int i; for (i = 0; i < minfo->drivers_count; ) {
--
2.27.0