This is a note to let you know that I've just added the patch titled
rtlwifi: Handle previous allocation failures when freeing device memory
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:
rtlwifi-handle-previous-allocation-failures-when-freeing-device-memory.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 <stable@vger.kernel.org> know about it.
>From 7f66c2f93e5779625c10d262c84537427a2673ca Mon Sep 17 00:00:00 2001
From: Simon Graham <simon.gra...@virtualcomputer.com>
Date: Tue, 7 Feb 2012 18:07:38 -0600
Subject: rtlwifi: Handle previous allocation failures when freeing device memory
From: Simon Graham <simon.gra...@virtualcomputer.com>
commit 7f66c2f93e5779625c10d262c84537427a2673ca upstream.
Handle previous allocation failures when freeing device memory
Signed-off-by: Simon Graham <simon.gra...@virtualcomputer.com>
Signed-off-by: Larry Finger <larry.fin...@lwfinger.net>
Signed-off-by: John W. Linville <linvi...@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/net/wireless/rtlwifi/pci.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
--- a/drivers/net/wireless/rtlwifi/pci.c
+++ b/drivers/net/wireless/rtlwifi/pci.c
@@ -1157,10 +1157,12 @@ static void _rtl_pci_free_tx_ring(struct
ring->idx = (ring->idx + 1) % ring->entries;
}
- pci_free_consistent(rtlpci->pdev,
- sizeof(*ring->desc) * ring->entries,
- ring->desc, ring->dma);
- ring->desc = NULL;
+ if (ring->desc) {
+ pci_free_consistent(rtlpci->pdev,
+ sizeof(*ring->desc) * ring->entries,
+ ring->desc, ring->dma);
+ ring->desc = NULL;
+ }
}
static void _rtl_pci_free_rx_ring(struct rtl_pci *rtlpci)
@@ -1184,12 +1186,14 @@ static void _rtl_pci_free_rx_ring(struct
kfree_skb(skb);
}
- pci_free_consistent(rtlpci->pdev,
+ if (rtlpci->rx_ring[rx_queue_idx].desc) {
+ pci_free_consistent(rtlpci->pdev,
sizeof(*rtlpci->rx_ring[rx_queue_idx].
desc) * rtlpci->rxringcount,
rtlpci->rx_ring[rx_queue_idx].desc,
rtlpci->rx_ring[rx_queue_idx].dma);
- rtlpci->rx_ring[rx_queue_idx].desc = NULL;
+ rtlpci->rx_ring[rx_queue_idx].desc = NULL;
+ }
}
}
Patches currently in stable-queue which might be from
simon.gra...@virtualcomputer.com are
queue-3.3/rtlwifi-handle-previous-allocation-failures-when-freeing-device-memory.patch
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