diff options
| author | thorpej <thorpej@NetBSD.org> | 2018-05-26 21:15:46 +0000 |
|---|---|---|
| committer | thorpej <thorpej@NetBSD.org> | 2018-05-26 21:15:46 +0000 |
| commit | 885d583fcbcb833aac545cb6e186c6d28b7c3dbd (patch) | |
| tree | 1616c8ce8ed33a2cdef01acaafb91ec31bca2545 /sys/dev/sysmon | |
| parent | db12b27c3f70eed4d04b8b073a164e727a98ec18 (diff) | |
Avoid dereferencing NULL if we attempt to look up an known unit type.
Diffstat (limited to 'sys/dev/sysmon')
| -rw-r--r-- | sys/dev/sysmon/sysmon_envsys.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/dev/sysmon/sysmon_envsys.c b/sys/dev/sysmon/sysmon_envsys.c index c957041465e..b46059f9744 100644 --- a/sys/dev/sysmon/sysmon_envsys.c +++ b/sys/dev/sysmon/sysmon_envsys.c @@ -1,4 +1,4 @@ -/* $NetBSD: sysmon_envsys.c,v 1.142 2018/05/05 00:14:28 pgoyette Exp $ */ +/* $NetBSD: sysmon_envsys.c,v 1.143 2018/05/26 21:15:46 thorpej Exp $ */ /*- * Copyright (c) 2007, 2008 Juan Romero Pardines. @@ -64,7 +64,7 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: sysmon_envsys.c,v 1.142 2018/05/05 00:14:28 pgoyette Exp $"); +__KERNEL_RCSID(0, "$NetBSD: sysmon_envsys.c,v 1.143 2018/05/26 21:15:46 thorpej Exp $"); #include <sys/param.h> #include <sys/types.h> @@ -578,7 +578,7 @@ sysmon_envsys_sensor_attach(struct sysmon_envsys *sme, envsys_data_t *edata) * Find the correct units for this sensor. */ sdt_units = sme_find_table_entry(SME_DESC_UNITS, edata->units); - if (sdt_units->type == -1) + if (sdt_units == NULL || sdt_units->type == -1) return EINVAL; /* |
