fsdax-output-address-in-dax_iomap_pfn-and-rename-it-v21

initialize `rc', per Dan.

Link: https://lore.kernel.org/linux-fsdevel/Yp8FUZnO64Qvyx5G@kili/
Link: https://lkml.kernel.org/r/20220607143837.161174-1-ruansy.fnst@fujitsu.com
Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/fs/dax.c b/fs/dax.c
index ab659c9f142a51062e22bd5379412846be548be1..7a8eb1e30a1b6069e0fe627a5b5063ba22b4ead8 100644 (file)
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1030,7 +1030,7 @@ static int dax_iomap_direct_access(const struct iomap *iomap, loff_t pos,
                size_t size, void **kaddr, pfn_t *pfnp)
 {
        pgoff_t pgoff = dax_iomap_pgoff(iomap, pos);
-       int id, rc;
+       int id, rc = 0;
        long length;
 
        id = dax_read_lock();