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authorJayachandran C <c.jayachandran@gmail.com>2006-02-03 03:04:51 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-03 08:32:11 -0800
commit12fc1d7b4b08a80776de3073439a09f54ce31f8f (patch)
treed98b6605704016950afab7cf60c60cafc78e5b60
parentdb9a369ec172c8251dbc6f7bf6bf13f6c5b6e7f5 (diff)
[PATCH] IPMI: fix issues reported by Coverity in ipmi_msghandler.c
While looking to the report by Coverity in ipmi, I came across the following issue: The IPMI message handler relies on two defines which are the same -one in include/linux/ipmi.h #define IPMI_NUM_CHANNELS 0x10 and one in drivers/char/ipmi/ipmi_msghandler. #define IPMI_MAX_CHANNELS 16 These are used interchangeably in ipmi_msghandler.c, but since the array addr->channels[] is of size IPMI_MAX_CHANNELS, I have made a patch that uses IPMI_MAX_CHANNELS for all the checks for the array index. NOTE: You could probably remove the line that defines IPMI_NUM_CHANNELS from ipmi.h, or move IPMI_MAX_CHANNELS to ipmi.h Signed-off-by: Jayachandran C. <c.jayachandran@gmail.com> Cc: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--drivers/char/ipmi/ipmi_msghandler.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 0097f06fa67..d745004281d 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -481,7 +481,7 @@ int ipmi_validate_addr(struct ipmi_addr *addr, int len)
}
if ((addr->channel == IPMI_BMC_CHANNEL)
- || (addr->channel >= IPMI_NUM_CHANNELS)
+ || (addr->channel >= IPMI_MAX_CHANNELS)
|| (addr->channel < 0))
return -EINVAL;
@@ -1321,7 +1321,7 @@ static int i_ipmi_request(ipmi_user_t user,
unsigned char ipmb_seq;
long seqid;
- if (addr->channel >= IPMI_NUM_CHANNELS) {
+ if (addr->channel >= IPMI_MAX_CHANNELS) {
spin_lock_irqsave(&intf->counter_lock, flags);
intf->sent_invalid_commands++;
spin_unlock_irqrestore(&intf->counter_lock, flags);