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Fix NULL pointer dereferences

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Fix NULL pointer dereferences identified as V522 by PVS-Studio.

MFC after:	1 week
Sponsored by:	Multiplay
This commit is contained in:
smh 2016-02-25 02:46:47 +00:00
parent 5fb2421735
commit 3eb9660c3f
1 changed files with 8 additions and 10 deletions
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18
sys/dev/mrsas/mrsas.c
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@ -1274,14 +1274,12 @@ mrsas_get_softc_instance(struct cdev *dev, u_long cmd, caddr_t arg)
* Application
*/
sc = mrsas_mgmt_info.sc_ptr[user_ioc->host_no];
if ((user_ioc->host_no >= mrsas_mgmt_info.max_index) || (sc == NULL)) {
if (sc == NULL)
mrsas_dprint(sc, MRSAS_FAULT,
"There is no Controller number %d .\n", user_ioc->host_no);
else
mrsas_dprint(sc, MRSAS_FAULT,
"Invalid Controller number %d .\n", user_ioc->host_no);
}
if (sc == NULL)
printf("There is no Controller number %d\n",
user_ioc->host_no);
else if (user_ioc->host_no >= mrsas_mgmt_info.max_index)
mrsas_dprint(sc, MRSAS_FAULT,
"Invalid Controller number %d\n", user_ioc->host_no);
}
return sc;
@ -4023,8 +4021,8 @@ mrsas_aen_handler(struct mrsas_softc *sc)
u_int32_t seq_num;
int error;
if (!sc) {
device_printf(sc->mrsas_dev, "invalid instance!\n");
if (sc == NULL) {
printf("invalid instance!\n");
return;
}
if (sc->evt_detail_mem) {