Xiaomeng Tong 99367bf45d gma500: fix an incorrect NULL check on list iterator ...

commit bdef417d84536715145f6dc9cc3275c46f26295a upstream.

The bug is here:
	return crtc;

The list iterator value 'crtc' will *always* be set and non-NULL by
list_for_each_entry(), so it is incorrect to assume that the iterator
value will be NULL if the list is empty or no element is found.

To fix the bug, return 'crtc' when found, otherwise return NULL.

Cc: stable@vger.kernel.org
fixes: 89c78134cc ("gma500: Add Poulsbo support")
Signed-off-by: Xiaomeng Tong <xiam0nd.tong@gmail.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220327052028.2013-1-xiam0nd.tong@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2022-06-09 10:23:29 +02:00

..

backlight.c

drm/gma500: remove trailing whitespaces

2021-04-22 01:11:39 +02:00

cdv_device.c

drm/gma500: Unify crtc helpers

2021-02-09 13:07:41 +01:00

cdv_device.h

drm/gma500: Unify crtc helpers

2021-02-09 13:07:41 +01:00

cdv_intel_crt.c

drm/gma500/cdv: Remove unused code for crt init

2021-02-09 13:07:39 +01:00

cdv_intel_display.c

drm/gma500: Unify crtc helpers

2021-02-09 13:07:41 +01:00

cdv_intel_dp.c

drm/gma500: remove trailing whitespaces

2021-04-22 01:11:39 +02:00

cdv_intel_hdmi.c

drm/gma500: Remove Medfield support

2021-02-09 17:14:11 +01:00

cdv_intel_lvds.c

drm/gma500: correct kerneldoc

2021-04-22 01:11:39 +02:00

framebuffer.c

drm/gma500: Add the missed drm_gem_object_put() in psb_user_framebuffer_create()

2021-07-09 21:32:04 +02:00

framebuffer.h

…

gem.c

…

gem.h

…

gma_device.c

…

gma_device.h

…

gma_display.c

…

gma_display.h

…

gtt.c

drm/gma500: Never wait for blits

2021-02-09 13:07:44 +01:00

gtt.h

…

intel_bios.c

…

intel_bios.h

…

intel_gmbus.c

drm/gma500: correct kerneldoc

2021-04-22 01:11:39 +02:00

intel_i2c.c

…

Kconfig

drm/gma500: Remove dependency on TTM

2021-02-09 17:14:12 +01:00

Makefile

drm/gma500: Drop DRM_GMA3600 config option

2021-02-09 17:14:11 +01:00

mid_bios.c

…

mid_bios.h

…

mmu.c

drm/gma500: Remove CONFIG_X86 conditionals from source files

2021-02-09 17:14:11 +01:00

mmu.h

…

oaktrail_crtc.c

drm/gma500/oaktrail_crtc: Demote unworthy kernel-doc headers

2021-01-18 15:51:35 +01:00

oaktrail_device.c

Merge tag 'drm-misc-next-2021-03-03' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2021-03-16 17:08:46 +10:00

oaktrail_hdmi_i2c.c

…

oaktrail_hdmi.c

…

oaktrail_lvds_i2c.c

drm/gma500/oaktrail_lvds_i2c: Remove unused variables 'tmp'

2021-01-18 15:51:12 +01:00

oaktrail_lvds.c

drm/gma500: Fix end of loop tests for list_for_each_entry

2021-07-09 10:06:11 +02:00

oaktrail.h

…

opregion.c

…

opregion.h

…

power.c

drm/gma500: Convert to Linux IRQ interfaces

2021-08-10 20:13:32 +02:00

power.h

…

psb_device.c

drm/gma500: Unify crtc helpers

2021-02-09 13:07:41 +01:00

psb_device.h

…

psb_drv.c

drm/gma500: Convert to Linux IRQ interfaces

2021-08-10 20:13:32 +02:00

psb_drv.h

drm/gma500: Convert to Linux IRQ interfaces

2021-08-10 20:13:32 +02:00

psb_intel_display.c

gma500: fix an incorrect NULL check on list iterator

2022-06-09 10:23:29 +02:00

psb_intel_drv.h

…

psb_intel_lvds.c

…

psb_intel_modes.c

…

psb_intel_reg.h

drm/gma500: Remove Medfield support

2021-02-09 17:14:11 +01:00

psb_intel_sdvo_regs.h

…

psb_intel_sdvo.c

…

psb_irq.c

drm/gma500: Convert to Linux IRQ interfaces

2021-08-10 20:13:32 +02:00

psb_irq.h

drm/gma500: Convert to Linux IRQ interfaces

2021-08-10 20:13:32 +02:00

psb_lid.c

…

psb_reg.h

drm/gma500: Remove Medfield support

2021-02-09 17:14:11 +01:00