Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=215122e1110f97a3f478829049b9840cf8fdde57
Commit: 215122e1110f97a3f478829049b9840cf8fdde57
Parent: 6ab8eb1cffcc5640ca5b07c2a0ddfaa8fbbcc754
Author: Andrew Morton <[EMAIL PROTECTED]>
AuthorDate: Mon Feb 12 00:51:43 2007 -0800
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Mon Feb 12 09:48:27 2007 -0800
[PATCH] register_chrdev_region() don't hand out the LOCAL/EXPERIMENTAL
majors
As pointed out in http://bugzilla.kernel.org/show_bug.cgi?id=7922, dynamic
chardev major allocation can hand out majors which LANANA has defined as
being
for local/experimental use.
Cc: Torben Mathiasen <[EMAIL PROTECTED]>
Cc: Greg KH <[EMAIL PROTECTED]>
Cc: Al Viro <[EMAIL PROTECTED]>
Cc: Tomas Klas <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
fs/char_dev.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/fs/char_dev.c b/fs/char_dev.c
index a885f46..e6194e2 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -108,6 +108,13 @@ __register_chrdev_region(unsigned int major, unsigned int
baseminor,
/* temporary */
if (major == 0) {
for (i = ARRAY_SIZE(chrdevs)-1; i > 0; i--) {
+ /*
+ * Disallow the LANANA-assigned LOCAL/EXPERIMENTAL
+ * majors
+ */
+ if ((60 <= i && i <= 63) || (120 <= i && i <= 127) ||
+ (240 <= i && i <= 254))
+ continue;
if (chrdevs[i] == NULL)
break;
}
-
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