Commit 8bc1ad7d authored Jun 30, 2009 by Zhang Rui Committed by Linus Torvalds Jun 30, 2009

kernel/resource.c: fix sign extension in reserve_setup()

When the 32-bit signed quantities get assigned to the u64 resource_size_t,
they are incorrectly sign-extended.

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=13253
Addresses http://bugzilla.kernel.org/show_bug.cgi?id=9905



Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Reported-by: Leann Ogasawara <leann@ubuntu.com>
Cc: Pierre Ossman <drzeus@drzeus.cx>
Reported-by:  <pablomme@googlemail.com>
Tested-by:  <pablomme@googlemail.com>
Cc: <stable@kernel.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 529ba0d9

kernel/resource.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -787,7 +787,7 @@ static int __init reserve_setup(char *str)
		static struct resource reserve[MAXRESERVE];

		for (;;) {
		int io_start, io_num;
		unsigned int io_start, io_num;
		int x = reserved;

		if (get_option (&str, &io_start) != 2)

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