redonkable/alistair23-linux
redonkable/alistair23-linux
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libertas: fix data packet size errors

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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>
This commit is contained in:
Holger Schurig 2007-12-06 13:50:30 +01:00 committed by David S. Miller
parent abe3ed14d3
commit 09d4fad6e8
2 changed files with 4 additions and 1 deletions
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2
drivers/net/wireless/libertas/cmdresp.c
View file

@ -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,

3
drivers/net/wireless/libertas/if_cs.c
View file

@ -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);