Luiz Sampaio 4ed66cdc54 auxdisplay: charlcd: checking for pointer reference before dereferencing ...

[ Upstream commit 4daa9ff89ef27be43c15995412d6aee393a78200 ]

Check if the pointer lcd->ops->init_display exists before dereferencing it.
If a driver called charlcd_init() without defining the ops, this would
return segmentation fault, as happened to me when implementing a charlcd
driver.  Checking the pointer before dereferencing protects from
segmentation fault.

Signed-off-by: Luiz Sampaio <sampaio.ime@gmail.com>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2022-01-11 15:35:17 +01:00

..

arm-charlcd.c

auxdisplay: Replace HTTP links with HTTPS ones

2020-08-08 16:10:03 +02:00

cfag12864b.c

auxdisplay: Replace symbolic permissions with octal permissions

2021-07-16 07:42:35 +02:00

cfag12864bfb.c

treewide: Miguel has moved

2021-02-26 09:41:03 -08:00

charlcd.c

auxdisplay: charlcd: checking for pointer reference before dereferencing

2022-01-11 15:35:17 +01:00

charlcd.h

auxdisplay: Change gotoxy calling interface

2020-11-04 11:04:04 +01:00

hd44780_common.c

auxdisplay: Change gotoxy calling interface

2020-11-04 11:04:04 +01:00

hd44780_common.h

auxdisplay: Change gotoxy calling interface

2020-11-04 11:04:04 +01:00

hd44780.c

auxdisplay: hd44780: Fix oops on module unloading

2021-07-16 07:42:27 +02:00

ht16k33.c

auxdisplay: ht16k33: Fix frame buffer device blanking

2021-11-18 19:17:02 +01:00

img-ascii-lcd.c

auxdisplay: img-ascii-lcd: Fix lock-up when displaying empty string

2021-11-18 19:17:02 +01:00

Kconfig

auxdisplay: Fix duplicate CHARLCD config symbol

2021-01-25 22:14:19 +01:00

ks0108.c

auxdisplay: Replace symbolic permissions with octal permissions

2021-07-16 07:42:35 +02:00

lcd2s.c

auxdisplay: fix platform_no_drv_owner.cocci warnings

2020-11-14 09:52:35 +01:00

Makefile

auxdisplay: add a driver for lcd2s character display

2020-11-04 11:04:05 +01:00

panel.c

treewide: remove editor modelines and cruft

2021-05-07 00:26:34 -07:00