Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=67d2bc58afdd5168dce54ae06f5f30038c59f498
Commit: 67d2bc58afdd5168dce54ae06f5f30038c59f498
Parent: 3d124cbba316737af8f3a6959edb95bbd130a4d8
Author: Jan Yenya Kasprzak <[EMAIL PROTECTED]>
AuthorDate: Mon Apr 23 14:41:02 2007 -0700
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Tue Apr 24 08:23:07 2007 -0700
Char: mxser_new, fix recursive locking
Signed-off-by: Jan "Yenya" Kasprzak <[EMAIL PROTECTED]>
Acked-by: Jiri Slaby <[EMAIL PROTECTED]>
Acked-by: Alan Cox <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
drivers/char/mxser_new.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/char/mxser_new.c b/drivers/char/mxser_new.c
index 9af07e4..59e0aac 100644
--- a/drivers/char/mxser_new.c
+++ b/drivers/char/mxser_new.c
@@ -2230,7 +2230,14 @@ end_intr:
port->mon_data.rxcnt += cnt;
port->mon_data.up_rxcnt += cnt;
+ /*
+ * We are called from an interrupt context with &port->slock
+ * being held. Drop it temporarily in order to prevent
+ * recursive locking.
+ */
+ spin_unlock(&port->slock);
tty_flip_buffer_push(tty);
+ spin_lock(&port->slock);
}
static void mxser_transmit_chars(struct mxser_port *port)
-
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