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From: Paul Bolle <pebolle@tiscali.nl>
To: Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 2/2] raw: set range for MAX_RAW_DEVS
Date: Tue, 04 Feb 2014 23:23:40 +0100	[thread overview]
Message-ID: <1391552620.13156.16.camel@x220> (raw)

The Kconfig symbol MAX_RAW_DEVS is meant to be between 1 and 65536. But
those boundaries are not enforced by its Kconfig entry.

Note that MAX_RAW_DEVS is used to set MAX_RAW_MINORS in
drivers/char/raw.c. If one would accidentally set MAX_RAW_DEVS to an
invalid value, that invalid value will actually end up being used in
raw_init().

So add an appropriate range to this Kconfig entry.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
---
 drivers/char/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index fa3243d..1386749 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -499,6 +499,7 @@ config RAW_DRIVER
 config MAX_RAW_DEVS
 	int "Maximum number of RAW devices to support (1-65536)"
 	depends on RAW_DRIVER
+	range 1 65536
 	default "256"
 	help
 	  The maximum number of RAW devices that are supported.
-- 
1.8.5.3


                 reply	other threads:[~2014-02-04 22:23 UTC|newest]

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