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authorDavid Woodhouse <David.Woodhouse@intel.com>2009-01-29 12:17:09 +1100
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-01-29 12:17:09 +1100
commitc6428e52facd03dfac971a44abca4bc058104fec (patch)
tree2d1c5cc8069d689049642c1dc97746baeff21b35 /drivers/atm
parenta0641cc49a1d1436b3591a9aa4be8159f84b662c (diff)
downloadlinux-c6428e52facd03dfac971a44abca4bc058104fec.tar.bz2
solos: Fix various bugs in status packet handling
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/atm')
-rw-r--r--drivers/atm/solos-pci.c49
1 files changed, 28 insertions, 21 deletions
diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
index 8121f8556ea8..5e228a3f7502 100644
--- a/drivers/atm/solos-pci.c
+++ b/drivers/atm/solos-pci.c
@@ -293,13 +293,15 @@ static char *next_string(struct sk_buff *skb)
{
int i = 0;
char *this = skb->data;
-
- while (i < skb->len) {
+
+ for (i = 0; i < skb->len; i++) {
if (this[i] == '\n') {
this[i] = 0;
- skb_pull(skb, i);
+ skb_pull(skb, i + 1);
return this;
}
+ if (!isprint(this[i]))
+ return NULL;
}
return NULL;
}
@@ -316,7 +318,7 @@ static char *next_string(struct sk_buff *skb)
static int process_status(struct solos_card *card, int port, struct sk_buff *skb)
{
char *str, *end, *state_str;
- int ver, rate_up, rate_down, state, snr, attn;
+ int ver, rate_up, rate_down, state;
if (!card->atmdev[port])
return -ENODEV;
@@ -333,16 +335,22 @@ static int process_status(struct solos_card *card, int port, struct sk_buff *skb
}
str = next_string(skb);
+ if (!str)
+ return -EIO;
rate_up = simple_strtol(str, &end, 10);
if (*end)
return -EIO;
str = next_string(skb);
+ if (!str)
+ return -EIO;
rate_down = simple_strtol(str, &end, 10);
if (*end)
return -EIO;
state_str = next_string(skb);
+ if (!state_str)
+ return -EIO;
if (!strcmp(state_str, "Showtime"))
state = ATM_PHY_SIG_FOUND;
else {
@@ -350,25 +358,24 @@ static int process_status(struct solos_card *card, int port, struct sk_buff *skb
release_vccs(card->atmdev[port]);
}
- str = next_string(skb);
- snr = simple_strtol(str, &end, 10);
- if (*end)
- return -EIO;
-
- str = next_string(skb);
- attn = simple_strtol(str, &end, 10);
- if (*end)
- return -EIO;
-
- if (state == ATM_PHY_SIG_LOST && !rate_up && !rate_down)
+ if (state == ATM_PHY_SIG_LOST) {
dev_info(&card->dev->dev, "Port %d ATM state: %s\n",
port, state_str);
- else
- dev_info(&card->dev->dev, "Port %d ATM state: %s (%d/%d kb/s, SNR %ddB, Attn %ddB)\n",
- port, state_str, rate_up/1000, rate_down/1000,
- snr, attn);
-
- card->atmdev[port]->link_rate = rate_down;
+ } else {
+ char *snr, *attn;
+
+ snr = next_string(skb);
+ if (!str)
+ return -EIO;
+ attn = next_string(skb);
+ if (!attn)
+ return -EIO;
+
+ dev_info(&card->dev->dev, "Port %d: %s (%d/%d kb/s%s%s%s%s)\n",
+ port, state_str, rate_down/1000, rate_up/1000,
+ snr[0]?", SNR ":"", snr, attn[0]?", Attn ":"", attn);
+ }
+ card->atmdev[port]->link_rate = rate_down / 424;
card->atmdev[port]->signal = state;
return 0;