]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
x86/dumpstack: Avoid uninitlized variable
authorArnd Bergmann <arnd@arndb.de>
Fri, 2 Feb 2018 14:56:17 +0000 (15:56 +0100)
committerThomas Gleixner <tglx@linutronix.de>
Fri, 2 Feb 2018 22:33:50 +0000 (23:33 +0100)
commitebfc15019cfa72496c674ffcb0b8ef10790dcddc
tree49cd863172029ca617efa4ad2af0ccb8ef98f1b3
parent5bf30316991d5bcda046343ee77d823cf16fdd03
x86/dumpstack: Avoid uninitlized variable

In some configurations, 'partial' does not get initialized, as shown by
this gcc-8 warning:

arch/x86/kernel/dumpstack.c: In function 'show_trace_log_lvl':
arch/x86/kernel/dumpstack.c:156:4: error: 'partial' may be used uninitialized in this function [-Werror=maybe-uninitialized]
    show_regs_if_on_stack(&stack_info, regs, partial);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This initializes it to false, to get the previous behavior in this case.

Fixes: a9cdbe72c4e8 ("x86/dumpstack: Fix partial register dumps")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Nicolas Pitre <nico@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Borislav Petkov <bpetkov@suse.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Link: https://lkml.kernel.org/r/20180202145634.200291-1-arnd@arndb.de
arch/x86/kernel/dumpstack.c