x86/traps: Fix #DE Oops message regression

commit 5f1ec1fd32252af5130dac23b5542e8e66fe0bcb upstream.

The conversion of #DE to the idtentry mechanism introduced a change in the
Ooops message which confuses tools which parse crash information in dmesg.

Remove the underscore from 'divide_error' to restore previous behaviour.

Fixes: 9d06c4027f21 ("x86/entry: Convert Divide Error to IDTENTRY")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/CACT4Y+bTZFkuZd7+bPArowOv-7Die+WZpfOWnEO_Wgs3U59+oA@mail.gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 69cc82310974040860fc4a52c779d8294dc09622..d43df8de75a6af770e4202407aa8580eb7d3d866 100644 (file)
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -196,7 +196,7 @@ static __always_inline void __user *error_get_trap_addr(struct pt_regs *regs)
 
 DEFINE_IDTENTRY(exc_divide_error)
 {
-       do_error_trap(regs, 0, "divide_error", X86_TRAP_DE, SIGFPE,
+       do_error_trap(regs, 0, "divide error", X86_TRAP_DE, SIGFPE,
                      FPE_INTDIV, error_get_trap_addr(regs));
 }