From: Cédric Le Goater Date: Thu, 24 Apr 2014 07:23:29 +0000 (+0200) Subject: powerpc/boot: Add PROM_ERROR define in oflib X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9cc36bb0aca622539be59266012d8be4346f0996;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git powerpc/boot: Add PROM_ERROR define in oflib 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 Signed-off-by: Benjamin Herrenschmidt --- diff --git a/arch/powerpc/boot/of.h b/arch/powerpc/boot/of.h index 40d95bf7402b..0f058ef69521 100644 --- a/arch/powerpc/boot/of.h +++ b/arch/powerpc/boot/of.h @@ -23,4 +23,6 @@ typedef u32 __be32; #define cpu_to_be32(x) (x) #define be32_to_cpu(x) (x) +#define PROM_ERROR (-1u) + #endif /* _PPC_BOOT_OF_H_ */ diff --git a/arch/powerpc/boot/oflib.c b/arch/powerpc/boot/oflib.c index 0f72b1a42133..7f61f2eb5653 100644 --- a/arch/powerpc/boot/oflib.c +++ b/arch/powerpc/boot/oflib.c @@ -55,7 +55,7 @@ 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 +80,9 @@ 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]);