linux-kernel - [PATCH 2/7] blackfin arch: fix bug refuse to boot if rootfs image is not attached when MTD

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Message-Id: <11778169952824-git-send-email-bryan.wu@analog.com>
Date:	Sun, 29 Apr 2007 11:23:08 +0800
From:	Bryan Wu <bryan.wu@...log.com>
To:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Cc:	Bryan Wu <bryan.wu@...log.com>
Subject: [PATCH 2/7] blackfin arch: fix bug refuse to boot if rootfs image is not attached when MTD_UCLINUX is selected

Signed-off-by: Bryan Wu <bryan.wu@...log.com>
---
 arch/blackfin/kernel/setup.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 76e1f10..6a2190f 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -293,6 +293,11 @@ void __init setup_arch(char **cmdline_p)
 
 	memory_end -= mtd_size;
 
+	if (mtd_size == 0) {
+		console_init();
+		panic("Don't boot kernel without rootfs attached.\n");
+	}
+
 	/* Relocate MTD image to the top of memory after the uncached memory area */
 	dma_memcpy((char *)memory_end, __bss_stop, mtd_size);
 
-- 
1.5.1.2
-
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