From 8f4b20388fa77226a3605627a33a23f90d559e50 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Sun, 6 May 2012 16:01:05 -0500 Subject: [PATCH] b43legacy: Fix error due to MMIO access with SSB unpowered There is a dummy read of a PCI MMIO register that occurs before the SSB bus has been powered, which is an error. This bug has not been seen earlier, but was apparently exposed when udev was updated to version 182. Signed-off-by: Larry Finger Cc: stable Signed-off-by: John W. Linville --- drivers/net/wireless/b43legacy/main.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c index 1be214b..1deafaa 100644 --- a/drivers/net/wireless/b43legacy/main.c +++ b/drivers/net/wireless/b43legacy/main.c @@ -1573,8 +1573,6 @@ static void b43legacy_request_firmware(struct work_struct *work) const char *filename; int err; - /* do dummy read */ - ssb_read32(dev->dev, SSB_TMSHIGH); if (!fw->ucode) { if (rev == 2) filename = "ucode2"; -- 2.7.4