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authorRahul C S <rahulcssjce@gmail.com>2011-09-20 17:44:07 +0530
committerVijay Bellur <vijay@gluster.com>2011-09-22 02:35:21 -0700
commitaa7815c29a849346a75389f6ad15d8190f5a6710 (patch)
tree457df4be2ff77551e8ccbc0e4bc114adacfdafa3 /xlators/cluster/dht
parent8fc81caf43d491a49134e6491b813843e490bb99 (diff)
cluster/distribute: validate buf before accessing.
The macro to check & reset rebalance flags was accessing the iatt structure even in case of failures leading to null dereference. Change-Id: I518f4cc9086cecbe6cf791c8a351287fe3613650 BUG: 3594 Reviewed-on: http://review.gluster.com/472 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Shishir Gowda <shishirng@gluster.com>
Diffstat (limited to 'xlators/cluster/dht')
-rw-r--r--xlators/cluster/dht/src/dht-common.h10
1 files changed, 5 insertions, 5 deletions
diff --git a/xlators/cluster/dht/src/dht-common.h b/xlators/cluster/dht/src/dht-common.h
index 97a2bd016a0..a6dc0b00bd7 100644
--- a/xlators/cluster/dht/src/dht-common.h
+++ b/xlators/cluster/dht/src/dht-common.h
@@ -254,11 +254,11 @@ typedef struct dht_disk_layout dht_disk_layout_t;
((buf)->ia_prot.sticky == 1) && \
((buf)->ia_prot.sgid == 1))
-#define DHT_STRIP_PHASE1_FLAGS(buf) do { \
- if (IS_DHT_MIGRATION_PHASE1(buf)) { \
- (buf)->ia_prot.sticky = 0; \
- (buf)->ia_prot.sgid = 0; \
- } \
+#define DHT_STRIP_PHASE1_FLAGS(buf) do { \
+ if ((buf) && IS_DHT_MIGRATION_PHASE1(buf)) { \
+ (buf)->ia_prot.sticky = 0; \
+ (buf)->ia_prot.sgid = 0; \
+ } \
} while (0)
#define check_is_dir(i,s,x) (IA_ISDIR(s->ia_type))