IPACM: Fix a check of mmap call
When opening a NAT table, IPACM requests to mmap the nat device.
The failure check needs to be against MAP_FAILED and not against
NULL as a return value from mmap.
Change-Id: If8f3553c8ebb08b525d77c1ec4644bd9ee829d54
Acked-by: David Arinzon <darinzon@qti.qualcomm.com>
diff --git a/ipanat/src/ipa_nat_drvi.c b/ipanat/src/ipa_nat_drvi.c
index 8ba2bdb..cfda3e3 100644
--- a/ipanat/src/ipa_nat_drvi.c
+++ b/ipanat/src/ipa_nat_drvi.c
@@ -823,7 +823,7 @@
prot, flags,
fd, offset);
#endif
- if (NULL == ipv4_rules_addr) {
+ if (MAP_FAILED == ipv4_rules_addr) {
perror("unable to mmap the memory\n");
return -EINVAL;
}