Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=98701d1b0fe98b477b53df89114e6862547f8107
Commit: 98701d1b0fe98b477b53df89114e6862547f8107
Parent: 0f95b7fc839bc3272b1bf2325d8748a649bd3534
Author: kalash nainwal <[EMAIL PROTECTED]>
AuthorDate: Tue May 8 00:28:31 2007 -0700
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Tue May 8 11:15:08 2007 -0700
(re)register_binfmt returns with -EBUSY
When a binary format is unregistered and re-registered, register_binfmt
fails with -EBUSY. The reason is that unregister_binfmt does not set
fmt->next to NULL, and seeing (fmt->next != NULL), register_binfmt fails
with -EBUSY.
One can find his way around by explicitly setting fmt->next to NULL after
unregistering, but that is kind of unclean (one should better be using only
the interfaces, and not the interal members, isn't it?)
Attached one-liner can fix it.
Signed-off-by: Kalash Nainwal <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
fs/exec.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/fs/exec.c b/fs/exec.c
index f1691cd..1ba85c7 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -100,6 +100,7 @@ int unregister_binfmt(struct linux_binfmt * fmt)
while (*tmp) {
if (fmt == *tmp) {
*tmp = fmt->next;
+ fmt->next = NULL;
write_unlock(&binfmt_lock);
return 0;
}
-
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