Fix gcc uninitialized variable warnings

[mirror_zfs.git] / module / zfs / arc.c

diff --git a/module/zfs/arc.c b/module/zfs/arc.c
index 96c3fb702ba74f33b75ba930ab958e2e6077e560..1d7fd9e4cc07bc239792aac3a6458f1734260ad8 100644 (file)
--- a/module/zfs/arc.c
+++ b/module/zfs/arc.c
@@ -2678,7 +2678,7 @@ arc_read_nolock(zio_t *pio, spa_t *spa, const blkptr_t *bp,
     uint32_t *arc_flags, const zbookmark_t *zb)
 {
        arc_buf_hdr_t *hdr;
-       arc_buf_t *buf;
+       arc_buf_t *buf = NULL;
        kmutex_t *hash_lock;
        zio_t *rzio;
        uint64_t guid = spa_guid(spa);
@@ -2760,7 +2760,7 @@ top:
                uint64_t size = BP_GET_LSIZE(bp);
                arc_callback_t  *acb;
                vdev_t *vd = NULL;
-               uint64_t addr;
+               daddr_t addr = -1;
                boolean_t devw = B_FALSE;
 
                if (hdr == NULL) {
@@ -3038,7 +3038,7 @@ arc_release(arc_buf_t *buf, void *tag)
        arc_buf_hdr_t *hdr;
        kmutex_t *hash_lock = NULL;
        l2arc_buf_hdr_t *l2hdr;
-       uint64_t buf_size;
+       uint64_t buf_size = 0;
 
        /*
         * It would be nice to assert that if it's DMU metadata (level >
@@ -4062,7 +4062,7 @@ l2arc_read_done(zio_t *zio)
 static list_t *
 l2arc_list_locked(int list_num, kmutex_t **lock)
 {
-       list_t *list;
+       list_t *list = NULL;
 
        ASSERT(list_num >= 0 && list_num <= 3);
 
@@ -4235,7 +4235,7 @@ l2arc_write_buffers(spa_t *spa, l2arc_dev_t *dev, uint64_t target_sz)
        list_t *list;
        uint64_t passed_sz, write_sz, buf_sz, headroom;
        void *buf_data;
-       kmutex_t *hash_lock, *list_lock;
+       kmutex_t *hash_lock, *list_lock = NULL;
        boolean_t have_lock, full;
        l2arc_write_callback_t *cb;
        zio_t *pio, *wzio;