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drivers/at86rf2xx: fix null pointer check

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check if argument is NULL *before* using it :-)
This commit is contained in:
Marian Buschsieweke 2021-01-21 10:23:40 +01:00
parent b35e4f4a95
commit bc2a225e53
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GPG Key ID: 61F64C6599B1539F
1 changed files with 4 additions and 5 deletions
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9
drivers/at86rf2xx/at86rf2xx_netdev.c
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@ -305,7 +305,7 @@ netopt_state_t _get_state(at86rf2xx_t *dev)
static int _get(netdev_t *netdev, netopt_t opt, void *val, size_t max_len)
{
at86rf2xx_t *dev = (at86rf2xx_t *) netdev;
at86rf2xx_t *dev = (at86rf2xx_t *)netdev;
if (netdev == NULL) {
return -ENODEV;
@ -483,13 +483,12 @@ static int _get(netdev_t *netdev, netopt_t opt, void *val, size_t max_len)
static int _set(netdev_t *netdev, netopt_t opt, const void *val, size_t len)
{
at86rf2xx_t *dev = (at86rf2xx_t *) netdev;
uint8_t old_state = at86rf2xx_get_status(dev);
int res = -ENOTSUP;
at86rf2xx_t *dev = (at86rf2xx_t *)netdev;
if (dev == NULL) {
return -ENODEV;
}
uint8_t old_state = at86rf2xx_get_status(dev);
int res = -ENOTSUP;
/* temporarily wake up if sleeping and opt != NETOPT_STATE.
* opt != NETOPT_STATE check prevents redundant wake-up.