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authorSeth Forshee <seth.forshee@canonical.com>2012-04-25 17:28:00 -0500
committerJohn W. Linville <linville@tuxdriver.com>2012-04-27 15:25:25 -0400
commitdbdedbdf4fbff3d4962a0786f37aa86dfdc48a7e (patch)
treeb2816c0c7140b19d89500608170e69b4d13c82a6 /drivers/net/wireless/b43
parent1ed2ec37b44e86eaa8e0a03b908a39c80f65ee45 (diff)
b43: only reload config after successful initialization
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 <nbd@openwrt.org> Cc: <stable@vger.kernel.org> Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/b43')
-rw-r--r--drivers/net/wireless/b43/main.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index c79e6638c88..e4d6dc2e37d 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -4827,8 +4827,14 @@ static int b43_op_start(struct ieee80211_hw *hw)
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;
}