Steven Price 75448f40b9 initramfs: don't free a non-existent initrd ... [ Upstream commit 5d59aa8f9c ] Since commit 54c7a8916a ("initramfs: free initrd memory if opening /initrd.image fails"), the kernel has unconditionally attempted to free the initrd even if it doesn't exist. In the non-existent case this causes a boot-time splat if CONFIG_DEBUG_VIRTUAL is enabled due to a call to virt_to_phys() with a NULL address. Instead we should check that the initrd actually exists and only attempt to free it if it does. Link: http://lkml.kernel.org/r/20190516143125.48948-1-steven.price@arm.com Fixes: 54c7a8916a ("initramfs: free initrd memory if opening /initrd.image fails") Signed-off-by: Steven Price <steven.price@arm.com> Reported-by: Mark Rutland <mark.rutland@arm.com> Tested-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Mike Rapoport <rppt@linux.ibm.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2019-10-01 08:26:09 +02:00
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calibrate.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
do_mounts.c	init/: remove ineffective sparse disabling	2018-08-22 10:52:49 -07:00
do_mounts.h	fs: add do_mknodat() helper and ksys_mknod() wrapper; remove in-kernel calls to syscall	2018-04-02 20:15:56 +02:00
do_mounts_initrd.c	init/: remove ineffective sparse disabling	2018-08-22 10:52:49 -07:00
do_mounts_md.c	init/: remove ineffective sparse disabling	2018-08-22 10:52:49 -07:00
do_mounts_rd.c	init/: remove ineffective sparse disabling	2018-08-22 10:52:49 -07:00
init_task.c	signal: Don't restart fork when signals come in.	2018-08-09 13:07:01 -05:00
initramfs.c	initramfs: don't free a non-existent initrd	2019-10-01 08:26:09 +02:00
Kconfig	jump_label: move 'asm goto' support test to Kconfig	2019-06-04 08:02:34 +02:00
main.c	init: initialize jump labels before command line option parsing	2019-05-16 19:41:23 +02:00
Makefile	Construct init thread stack in the linker script rather than by union	2018-01-09 23:21:02 +00:00
noinitramfs.c	fs: add do_mknodat() helper and ksys_mknod() wrapper; remove in-kernel calls to syscall	2018-04-02 20:15:56 +02:00
version.c	kbuild: Add build salt to the kernel and modules	2018-07-18 01:18:05 +09:00