Xiaomeng Tong 8420201df3 tilcdc: tilcdc_external: fix an incorrect NULL check on list iterator ... commit 8b917cbe38 upstream. The bug is here: if (!encoder) { The list iterator value 'encoder' 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, use a new variable 'iter' as the list iterator, while use the original variable 'encoder' as a dedicated pointer to point to the found element. Cc: stable@vger.kernel.org Fixes: ec9eab097a ("drm/tilcdc: Add drm bridge support for attaching drm bridge drivers") Signed-off-by: Xiaomeng Tong <xiam0nd.tong@gmail.com> Reviewed-by: Jyri Sarha <jyri.sarha@iki.fi> Tested-by: Jyri Sarha <jyri.sarha@iki.fi> Signed-off-by: Jyri Sarha <jyri.sarha@iki.fi> Link: https://patchwork.freedesktop.org/patch/msgid/20220327061516.5076-1-xiam0nd.tong@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-06-09 10:26:29 +02:00
..
Kconfig	drm: Remove CONFIG_DRM_KMS_CMA_HELPER option	2021-11-30 11:10:03 +01:00
Makefile	doc: use KCFLAGS instead of EXTRA_CFLAGS to pass flags from command line	2021-02-22 13:59:10 -07:00
tilcdc_crtc.c	drm/tilcdc: fix pixel clock setting warning message	2021-03-24 12:05:28 +02:00
tilcdc_drv.c	drm: Remove redundant 'flush_workqueue()' calls	2021-10-15 16:48:51 -07:00
tilcdc_drv.h	drm/tilcdc: Convert to Linux IRQ interfaces	2021-08-10 20:13:53 +02:00
tilcdc_external.c	tilcdc: tilcdc_external: fix an incorrect NULL check on list iterator	2022-06-09 10:26:29 +02:00
tilcdc_external.h
tilcdc_panel.c	drm/tilcdc: panel: fix platform_no_drv_owner.cocci warnings	2021-03-24 12:05:28 +02:00
tilcdc_panel.h
tilcdc_plane.c	drm: Use state helper instead of the plane state pointer	2021-02-25 08:05:28 +01:00
tilcdc_regs.h