uprobes: Remove check for uprobe variable in handle_swbp()

by the time we get here (after we pass cleanup_ret) uprobe is always is
set. If it is NULL we leave very early in the code.
Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: NOleg Nesterov <oleg@redhat.com>

kernel/events/uprobes.c

@@ -1516,7 +1516,6 @@ static void handle_swbp(struct pt_regs *regs)
 		utask->active_uprobe = NULL;
 		utask->state = UTASK_RUNNING;
 	}
-	if (uprobe) {
 	if (!(uprobe->flags & UPROBE_SKIP_SSTEP))
 
 		/*
@@ -1526,7 +1525,6 @@ static void handle_swbp(struct pt_regs *regs)
 		instruction_pointer_set(regs, bp_vaddr);
 
 	put_uprobe(uprobe);
-	}
 }
 
 /*