This is a note to let you know that I've just added the patch titled
b43: only reload config after successful initialization
to the 3.3-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
b43-only-reload-config-after-successful-initialization.patch
and it can be found in the queue-3.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From dbdedbdf4fbff3d4962a0786f37aa86dfdc48a7e Mon Sep 17 00:00:00 2001
From: Seth Forshee <[email protected]>
Date: Wed, 25 Apr 2012 17:28:00 -0500
Subject: b43: only reload config after successful initialization
From: Seth Forshee <[email protected]>
commit dbdedbdf4fbff3d4962a0786f37aa86dfdc48a7e upstream.
Commit 2a19032 (b43: reload phy and bss settings after core restarts)
introduced an unconditional call to b43_op_config() at the end of
b43_op_start(). When firmware fails to load this can wedge the system.
There's no need to reload the configuration after a failed
initialization anyway, so only make the call if initialization was
successful.
BugLink: http://bugs.launchpad.net/bugs/950295
Cc: Felix Fietkau <[email protected]>
Signed-off-by: Seth Forshee <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/wireless/b43/main.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -4841,8 +4841,14 @@ static int b43_op_start(struct ieee80211
out_mutex_unlock:
mutex_unlock(&wl->mutex);
- /* reload configuration */
- b43_op_config(hw, ~0);
+ /*
+ * Configuration may have been overwritten during initialization.
+ * Reload the configuration, but only if initialization was
+ * successful. Reloading the configuration after a failed init
+ * may hang the system.
+ */
+ if (!err)
+ b43_op_config(hw, ~0);
return err;
}
Patches currently in stable-queue which might be from
[email protected] are
queue-3.3/b43-only-reload-config-after-successful-initialization.patch
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