b43: Remove reset after fatal DMA error

As shown in Kernel Bugzilla #14761, doing a controller restart after a
fatal DMA error does not accomplish anything other than consume the CPU
on an affected system. Accordingly, substitute a meaningful message for
the restart.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>        [2.6.32]
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 077480c4916a..19b4eae47b59 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -1784,7 +1784,10 @@ static void b43_do_interrupt_thread(struct b43_wldev *dev)
                                dma_reason[0], dma_reason[1],
                                dma_reason[2], dma_reason[3],
                                dma_reason[4], dma_reason[5]);
-                        b43_controller_restart(dev, "DMA error");
+                        b43err(dev->wl, "This device does not support DMA "
+                               "on your system. Please use PIO instead.\n");
+                        b43err(dev->wl, "CONFIG_B43_FORCE_PIO must be set in "
+                               "your kernel configuration.\n");
                         return;
                 }
                 if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) {