[PATCH] powerpc: fix various sparse warnings

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index f698aa77127e..995b14688d3a 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -362,7 +362,11 @@ static void show_instructions(struct pt_regs *regs)
                 if (!(i % 8))
                         printk("\n");
 
-                if (BAD_PC(pc) || __get_user(instr, (unsigned int *)pc)) {
+                /* We use __get_user here *only* to avoid an OOPS on a
+                 * bad address because the pc *should* only be a
+                 * kernel address.
+                 */
+                if (BAD_PC(pc) || __get_user(instr, (unsigned int __user *)pc)) {
                         printk("XXXXXXXX ");
                 } else {
                         if (regs->nip == pc)