[PATCH] direct-io: squelch maybe-uninitialized warning in do_direct_IO()

[Jason Cooper]

The following warnings:

  fs/direct-io.c: In function â__blockdev_direct_IOâ:
  fs/direct-io.c:1011:12: warning: âtoâ may be used uninitialized in this function [-Wmaybe-uninitialized]
  fs/direct-io.c:913:16: note: âtoâ was declared here
  fs/direct-io.c:1011:12: warning: âfromâ may be used uninitialized in this function [-Wmaybe-uninitialized]
  fs/direct-io.c:913:10: note: âfromâ was declared here

are not necessary because dio_get_page() either fails, or sets both
'from' and 'to'.

Make the compiler happy so we can more easily detect legitimate
warnings.

Signed-off-by: Jason Cooper <jason@xxxxxxxxxxxxxx>
---
 fs/direct-io.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/direct-io.c b/fs/direct-io.c
index 98040ba388ac..c0a9854d2bc7 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -910,7 +910,8 @@ static int do_direct_IO(struct dio *dio, struct dio_submit *sdio,
 
 	while (sdio->block_in_file < sdio->final_block_in_request) {
 		struct page *page;
-		size_t from, to;
+		size_t from = 0;
+		size_t to = 0;
 		page = dio_get_page(dio, sdio, &from, &to);
 		if (IS_ERR(page)) {
 			ret = PTR_ERR(page);
-- 
2.0.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/