From: Yang Ruirui <ruirui.r.yang@tieto.com>
To: <dwmw2@infradead.org>, <linux-mtd@lists.infradead.org>,
<Artem.Bityutskiy@nokia.com>, <ext-jani.1.nikula@nokia.com>,
<ext-phil.2.carmody@nokia.com>, <ruirui.r.yang@tietoenator.com>
Subject: [PATCH 02/02] force module loaded with partitions set
Date: Mon, 14 Mar 2011 09:51:48 +0800 [thread overview]
Message-ID: <20110314015148.GA6827@darkstar> (raw)
From: Yang Ruirui<ruirui.r.yang@tieto.com>
partitions can not be set after module loaded, the moduel param mode is 0444.
this patch force module loaded with param partitions set, if user does not
set partitions then give out a warning and return -EINVAL
Signed-off-by: Yang Ruirui<ruirui.r.yang@tieto.com>
Tested-by: Shao Yanqing<yanqing.shao@tieto.com>
Tested-by: Xiao Yang<yang.xiao@tieto.com>
---
drivers/mtd/mtdswap.c | 6 ++++++
1 file changed, 6 insertions(+)
--- mtd-2.6-fc2ff59.orig/drivers/mtd/mtdswap.c 2011-03-14 09:36:09.283329099 +0800
+++ mtd-2.6-fc2ff59/drivers/mtd/mtdswap.c 2011-03-14 09:46:30.229993534 +0800
@@ -1569,6 +1569,12 @@ static struct mtd_blktrans_ops mtdswap_o
static int __init mtdswap_modinit(void)
{
+ if (!partitions[0]) {
+ printk(KERN_WARNING
+ "Please load mtdswap with correct partitions param\n");
+ return -EINVAL;
+ }
+
return register_mtd_blktrans(&mtdswap_ops);
}
next reply other threads:[~2011-03-14 1:42 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-14 1:51 Yang Ruirui [this message]
2011-03-14 8:43 ` [PATCH 02/02] force module loaded with partitions set Artem Bityutskiy
2011-03-14 8:57 ` Yang Rui Rui
2011-03-14 8:53 ` Artem Bityutskiy
2011-03-14 9:12 ` Yang Rui Rui
2011-03-14 9:33 ` Artem Bityutskiy
2011-03-17 8:50 ` Yang Rui Rui
2011-03-17 8:51 ` Artem Bityutskiy
2011-03-17 9:24 ` Yang Rui Rui
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