Stephan Gerhold d8fe0af636 drm/mcde: dsi: Fix invalid pointer dereference if panel cannot be found ... [ Upstream commit c131280c03 ] The "panel" pointer is not reset to NULL if of_drm_find_panel() returns an error. Therefore we later assume that a panel was found, and try to dereference the error pointer, resulting in: mcde-dsi a0351000.dsi: failed to find panel try bridge (4294966779) Unable to handle kernel paging request at virtual address fffffe03 PC is at drm_panel_bridge_add.part.0+0x10/0x5c LR is at mcde_dsi_bind+0x120/0x464 ... Reset "panel" to NULL to avoid this problem. Also change the format string of the error to %ld to print the negative errors correctly. The crash above then becomes: mcde-dsi a0351000.dsi: failed to find panel try bridge (-517) mcde-dsi a0351000.dsi: no panel or bridge ... Fixes: 5fc537bfd0 ("drm/mcde: Add new driver for ST-Ericsson MCDE") Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191118130252.170324-1-stephan@gerhold.net Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-01-09 10:19:41 +01:00
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Kconfig	…
Makefile	…
mcde_display.c	drm/mcde: Fix an uninitialized variable	2019-06-13 11:55:23 +02:00
mcde_display_regs.h	…
mcde_drm.h	…
mcde_drv.c	drm/mcde: Fix an error handling path in 'mcde_probe()'	2019-12-13 08:43:29 +01:00
mcde_dsi.c	drm/mcde: dsi: Fix invalid pointer dereference if panel cannot be found	2020-01-09 10:19:41 +01:00
mcde_dsi_regs.h	…