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authorOlof Johansson <olof@lixom.net>2012-09-20 19:57:38 -0700
committerOlof Johansson <olof@lixom.net>2012-09-20 19:57:38 -0700
commit32dec75349da4e68b53f099ce3a96469cdc334d6 (patch)
tree96aca7914b07697668ec716a3f80fb8c82e7a971 /drivers/net/wireless/mwifiex/cmdevt.c
parent740418ef19fd7def7b9c333435d4ca1dce28cc42 (diff)
parent9891e3240543c45176b1298164418b61e8909ed0 (diff)
downloadlinux-32dec75349da4e68b53f099ce3a96469cdc334d6.tar.bz2
Merge tag 'tegra-for-3.7-dmaengine' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/cleanup
ARM: tegra: switch to dmaengine The Tegra code-base has contained both a legacy DMA and a dmaengine driver since v3.6-rcX. This series flips Tegra's defconfig to enable dmaengine rather than the legacy driver, and removes the legacy driver and all client code. * tag 'tegra-for-3.7-dmaengine' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: ASoC: tegra: remove support of legacy DMA driver based access spi: tegra: remove support of legacy DMA driver based access ARM: tegra: apbio: remove support of legacy DMA driver based access ARM: tegra: dma: remove legacy APB DMA driver ARM: tegra: config: enable dmaengine based APB DMA driver + sync to 3.6-rc6
Diffstat (limited to 'drivers/net/wireless/mwifiex/cmdevt.c')
-rw-r--r--drivers/net/wireless/mwifiex/cmdevt.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/net/wireless/mwifiex/cmdevt.c b/drivers/net/wireless/mwifiex/cmdevt.c
index c68adec3cc8b..565527aee0ea 100644
--- a/drivers/net/wireless/mwifiex/cmdevt.c
+++ b/drivers/net/wireless/mwifiex/cmdevt.c
@@ -170,7 +170,20 @@ static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv,
cmd_code = le16_to_cpu(host_cmd->command);
cmd_size = le16_to_cpu(host_cmd->size);
- skb_trim(cmd_node->cmd_skb, cmd_size);
+ /* Adjust skb length */
+ if (cmd_node->cmd_skb->len > cmd_size)
+ /*
+ * cmd_size is less than sizeof(struct host_cmd_ds_command).
+ * Trim off the unused portion.
+ */
+ skb_trim(cmd_node->cmd_skb, cmd_size);
+ else if (cmd_node->cmd_skb->len < cmd_size)
+ /*
+ * cmd_size is larger than sizeof(struct host_cmd_ds_command)
+ * because we have appended custom IE TLV. Increase skb length
+ * accordingly.
+ */
+ skb_put(cmd_node->cmd_skb, cmd_size - cmd_node->cmd_skb->len);
do_gettimeofday(&tstamp);
dev_dbg(adapter->dev, "cmd: DNLD_CMD: (%lu.%lu): %#x, act %#x, len %d,"