1 files changed, 24 insertions, 9 deletions

diff --git a/cache.c b/cache.c
index add647e..6847202 100644
--- a/cache.c
+++ b/cache.c
@@ -67,10 +67,14 @@ static int open_slot(struct cache_slot *slot)
 
 /* Close the active cache slot */
-static void close_slot(struct cache_slot *slot)
+static int close_slot(struct cache_slot *slot)
 {
+        int err = 0;
         if (slot->cache_fd > 0) {
-                close(slot->cache_fd);
-                slot->cache_fd = -1;
+                if (close(slot->cache_fd))
+                        err = errno;
+                else
+                        slot->cache_fd = -1;
         }
+        return err;
 }
 
@@ -117,10 +121,14 @@ static int is_modified(struct cache_slot *slot)
 
 /* Close an open lockfile */
-static void close_lock(struct cache_slot *slot)
+static int close_lock(struct cache_slot *slot)
 {
+        int err = 0;
         if (slot->lock_fd > 0) {
-                close(slot->lock_fd);
-                slot->lock_fd = -1;
+                if (close(slot->lock_fd))
+                        err = errno;
+                else
+                        slot->lock_fd = -1;
         }
+        return err;
 }
 
@@ -135,5 +143,6 @@ static int lock_slot(struct cache_slot *slot)
         if (slot->lock_fd == -1)
                 return errno;
-        write(slot->lock_fd, slot->key, slot->keylen + 1);
+        if (write(slot->lock_fd, slot->key, slot->keylen + 1) < 0)
+                return errno;
         return 0;
 }
@@ -151,5 +160,9 @@ static int unlock_slot(struct cache_slot *slot, int replace_old_slot)
         else
                 err = unlink(slot->lock_name);
-        return err;
+
+        if (err)
+                return errno;
+
+        return 0;
 }
 
@@ -178,5 +191,7 @@ static int fill_slot(struct cache_slot *slot)
 
         /* Close the temporary filedescriptor */
-        close(tmp);
+        if (close(tmp))
+                return errno;
+
         return 0;
 }