mem_class: fix bug

When I build and boot -next on fedora 10, I can not login anymore.
When I input the user name and password, the system does not output
any message and requires user to input the user name and password
again and again.

I find the patch which caused this problem with "GIT BISECT" command.
And the patch is
    commit 7c4b7daa1878972ed0137c95f23569124bd6e2b1
    "mem_class: use minor as index instead of searching the array".

Though I don't know the real reason why user could not login, I
confirmed the patch I made as following could resolve the problem on
fedora 10.

Signed-off-by: Jin Dongming <jin.dongming@np.css.fujitsu.com>
Acked-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index bed3503184e46a7dbf705c3a2088369d32d82043..0491cdf63f2a94a46f200fc3475e3d196bb86e2c 100644 (file)
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -878,8 +878,8 @@ static const struct memdev {
        [ 4] = { "port", &port_fops, NULL },
 #endif
        [ 5] = { "zero", &zero_fops, &zero_bdi },
-       [ 6] = { "full", &full_fops, NULL },
-       [ 7] = { "random", &random_fops, NULL },
+       [ 7] = { "full", &full_fops, NULL },
+       [ 8] = { "random", &random_fops, NULL },
        [ 9] = { "urandom", &urandom_fops, NULL },
        [11] = { "kmsg", &kmsg_fops, NULL },
 #ifdef CONFIG_CRASH_DUMP