[PATCH 1/6] MIPS: irixelf: fix test unsigned var < 0

[Roel Kluin <12o3l@tiscali.nl>]

v is unsigned, cast to signed to evaluate the do_brk() return value,
    
Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
---
diff --git a/arch/mips/kernel/irixelf.c b/arch/mips/kernel/irixelf.c
index 290d8e3..fad2a2a 100644
--- a/arch/mips/kernel/irixelf.c
+++ b/arch/mips/kernel/irixelf.c
@@ -583,15 +583,15 @@ static void irix_map_prda_page(void)
        unsigned long v;
        struct prda *pp;
 
        down_write(&current->mm->mmap_sem);
        v =  do_brk(PRDA_ADDRESS, PAGE_SIZE);
        up_write(&current->mm->mmap_sem);
 
-       if (v < 0)
+       if ((long) v < 0)
                return;
 
        pp = (struct prda *) v;
        pp->prda_sys.t_pid  = task_pid_vnr(current);
        pp->prda_sys.t_prid = read_c0_prid();
        pp->prda_sys.t_rpid = task_pid_vnr(current);