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Btrfs: Fix wrong error handling code

Message ID 1349961916-19655-1-git-send-email-sbehrens@giantdisaster.de (mailing list archive)
State New, archived
Headers show

Commit Message

Stefan Behrens Oct. 11, 2012, 1:25 p.m. UTC
gcc says "warning: comparison of unsigned expression >= 0 is always
true" because i is an unsigned long. And gcc is right this time.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
---
 fs/btrfs/extent_io.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 64dc93f..a32ebfe 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4104,8 +4104,8 @@  struct extent_buffer *alloc_dummy_extent_buffer(u64 start, unsigned long len)
 
 	return eb;
 err:
-	for (i--; i >= 0; i--)
-		__free_page(eb->pages[i]);
+	for (; i > 0; i--)
+		__free_page(eb->pages[i - 1]);
 	__free_extent_buffer(eb);
 	return NULL;
 }