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authorHolger Schurig <hs4233@mail.mn-solutions.de>2007-12-06 13:50:30 +0100
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:06:08 -0800
commit09d4fad6e8972061fbb0e2e5ae9e686d84f57af6 (patch)
tree48c5151452013f7b551cf38743bebf26cf535a08 /drivers/net/wireless
parentabe3ed14d39adcea9ae186cf741b15d11544458f (diff)
libertas: fix data packet size errors
I wondered about junk bytes at the end when using "lbsdebug +hex +host" until I noticed that firmware for the CF card sends my extranous bytes. It says "I have 20 bytes", I take 20 bytes, but the last 8 bytes of this are just data junk. Also, in the new lbs_cmd() where was a size miscalulation that made itself clear after fixing this bug. Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/libertas/cmdresp.c2
-rw-r--r--drivers/net/wireless/libertas/if_cs.c3
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/wireless/libertas/cmdresp.c b/drivers/net/wireless/libertas/cmdresp.c
index 6a43de772aa..22a69736338 100644
--- a/drivers/net/wireless/libertas/cmdresp.c
+++ b/drivers/net/wireless/libertas/cmdresp.c
@@ -882,7 +882,7 @@ int lbs_process_rx_command(struct lbs_private *priv)
if (adapter->cur_cmd->pdata_size) {
struct cmd_ds_gen *r = (struct cmd_ds_gen *)resp;
- u16 sz = cpu_to_le16(resp->size);
+ u16 sz = cpu_to_le16(resp->size) - S_DS_GEN;
if (sz > *adapter->cur_cmd->pdata_size) {
lbs_pr_err("response 0x%04x doesn't fit into "
"buffer (%d > %d)\n", respcmd,
diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c
index 54b1ba3e250..8508260a286 100644
--- a/drivers/net/wireless/libertas/if_cs.c
+++ b/drivers/net/wireless/libertas/if_cs.c
@@ -373,6 +373,9 @@ static int if_cs_receive_cmdres(struct lbs_private *priv, u8 *data, u32 *len)
if (*len & 1)
data[*len-1] = if_cs_read8(priv->card, IF_CS_C_CMD);
+ /* This is a workaround for a firmware that reports too much
+ * bytes */
+ *len -= 8;
ret = 0;
out:
lbs_deb_leave_args(LBS_DEB_CS, "ret %d, len %d", ret, *len);