mm/memory-failure.c: clarify error message

Some user who install SIGBUS handler that does longjmp out therefore
keeping the process alive is confused by the error message

  "[188988.765862] Memory failure: 0x1840200: Killing cellsrv:33395 due to hardware memory corruption"

Slightly modify the error message to improve clarity.

Link: http://lkml.kernel.org/r/1558403523-22079-1-git-send-email-jane.chu@oracle.com
Signed-off-by: Jane Chu <jane.chu@oracle.com>
Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Pankaj Gupta <pagupta@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/memory-failure.c

@@ -213,7 +213,7 @@ static int kill_proc(struct to_kill *tk, unsigned long pfn, int flags)
 	short addr_lsb = tk->size_shift;
 	int ret;
 
-	pr_err("Memory failure: %#lx: Killing %s:%d due to hardware memory corruption\n",
+	pr_err("Memory failure: %#lx: Sending SIGBUS to %s:%d due to hardware memory corruption\n",
 		pfn, t->comm, t->pid);
 
 	if ((flags & MF_ACTION_REQUIRED) && t->mm == current->mm) {