svn commit: r284336 - head/sys/dev/acpi_support
Allan Jude
allanjude at FreeBSD.org
Sat Jun 13 05:55:27 UTC 2015
Author: allanjude (doc committer)
Date: Sat Jun 13 05:55:26 2015
New Revision: 284336
URL: https://svnweb.freebsd.org/changeset/base/284336
Log:
acpi_ibm.ko panics if SMBIOS information is not available
Add a check for NULL before strcmp on smbios information incase it is not populated
Differential Revision: https://reviews.freebsd.org/D2750
Reviewed by: ngie, jhb
Approved by: rpaulo
Sponsored by: ScaleEngine Inc.
Modified:
head/sys/dev/acpi_support/acpi_ibm.c
Modified: head/sys/dev/acpi_support/acpi_ibm.c
==============================================================================
--- head/sys/dev/acpi_support/acpi_ibm.c Sat Jun 13 01:28:19 2015 (r284335)
+++ head/sys/dev/acpi_support/acpi_ibm.c Sat Jun 13 05:55:26 2015 (r284336)
@@ -485,6 +485,9 @@ acpi_ibm_attach(device_t dev)
/* Enable per-model events. */
maker = kern_getenv("smbios.system.maker");
product = kern_getenv("smbios.system.product");
+ if (maker != NULL && product != NULL)
+ goto nosmbios;
+
for (i = 0; i < nitems(acpi_ibm_models); i++) {
if (strcmp(maker, acpi_ibm_models[i].maker) == 0 &&
strcmp(product, acpi_ibm_models[i].product) == 0) {
@@ -494,6 +497,8 @@ acpi_ibm_attach(device_t dev)
ACPI_SERIAL_END(ibm);
}
}
+
+nosmbios:
freeenv(maker);
freeenv(product);
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