This is mostly useful to make to the boot wrapper code closer with
the kernel code in prom_init.
Signed-off-by: Cédric Le Goater <c...@fr.ibm.com>
---
arch/powerpc/boot/oflib.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/boot/oflib.c b/arch/powerpc/boot/oflib.c
index 0f72b1a42133..96fe4d225abe 100644
--- a/arch/powerpc/boot/oflib.c
+++ b/arch/powerpc/boot/oflib.c
@@ -27,6 +27,8 @@ struct prom_args {
__be32 args[10]; /* Input/output arguments. */
};
+#define PROM_ERROR (-1u)
+
static int (*prom) (void *);
void of_init(void *promptr)
@@ -55,7 +57,7 @@ int of_call_prom(const char *service, int nargs, int nret,
...)
args.args[nargs+i] = 0;
if (prom(&args) < 0)
- return -1;
+ return PROM_ERROR;
return (nret > 0) ? be32_to_cpu(args.args[nargs]) : 0;
}
@@ -80,9 +82,9 @@ static int of_call_prom_ret(const char *service, int nargs,
int nret,
args.args[nargs+i] = 0;
if (prom(&args) < 0)
- return -1;
+ return PROM_ERROR;
- if (rets != (void *) 0)
+ if (rets != NULL)
for (i = 1; i < nret; ++i)
rets[i-1] = be32_to_cpu(args.args[nargs+i]);
--
1.7.10.4
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