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ipmi: kcs_bmc_aspeed: Fix less than zero comparison of a unsigned int 

The comparisons of the unsigned int hw_type to less than zero always
false because it is unsigned. Fix this by using an int for the
assignment and less than zero check.

Addresses-Coverity: ("Unsigned compared against 0")
Fixes: 9d2df9a0ad80 ("ipmi: kcs_bmc_aspeed: Implement KCS SerIRQ configuration")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Message-Id: <20210616162913.15259-1-colin.king@canonical.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
This commit is contained in:
Colin Ian King 2021-06-16 17:29:13 +01:00 committed by Corey Minyard
parent d0ec795c8c
commit 5b32dd281e
1 changed files with 5 additions and 3 deletions
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8
drivers/char/ipmi/kcs_bmc_aspeed.c
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@ -301,13 +301,15 @@ static inline int aspeed_kcs_map_serirq_type(u32 dt_type)
static int aspeed_kcs_config_upstream_irq(struct aspeed_kcs_bmc *priv, u32 id, u32 dt_type)
{
unsigned int mask, val, hw_type;
int ret;
if (id > 15)
return -EINVAL;
hw_type = aspeed_kcs_map_serirq_type(dt_type);
if (hw_type < 0)
return hw_type;
ret = aspeed_kcs_map_serirq_type(dt_type);
if (ret < 0)
return ret;
hw_type = ret;
priv->upstream_irq.mode = aspeed_kcs_irq_serirq;
priv->upstream_irq.id = id;