[U-Boot] [PATCH] fs/ext2/ext2fs.c: fix warning

[Thierry Reding]

On Wed, Jun 27, 2012 at 01:47:51PM +0200, Andreas Bießmann wrote:
> This patch fixes following warning:
> ---8<---
> ext2fs.c: In function 'ext2fs_read_file':
> ext2fs.c:458:19: warning: 'blocknxt' may be used uninitialized in this function [-Wuninitialized]
> --->8---
> 
> The warning was introduced in 436da3cd233e7166b5ce9293dbd28092cf37bcc9.
> 
> Signed-off-by: Andreas Bießmann <andreas.devel at googlemail.com>
> cc: Jason Cooper <u-boot at lakedaemon.net>
> cc: Eric Nelson <eric.nelson at boundarydevices.com>
> cc: Thierry Reding <thierry.reding at avionic-design.de>
> ---
>  fs/ext2/ext2fs.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/ext2/ext2fs.c b/fs/ext2/ext2fs.c
> index f1fce48..40b6e6f 100644
> --- a/fs/ext2/ext2fs.c
> +++ b/fs/ext2/ext2fs.c
> @@ -440,7 +440,7 @@ int ext2fs_read_file
>  		/* grab middle blocks in one go */
>  		if (i != pos / blocksize && i != blockcnt - 1 && blockcnt > 3) {
>  			int oldblk = blknr;
> -			int blocknxt;
> +			int blocknxt = blknr;
>  			while (i < blockcnt - 1) {
>  				blocknxt = ext2fs_read_block(node, i + 1);
>  				if (blocknxt == (oldblk + 1)) {

This doesn't look quite right. The warning should go away as well if you
change the "i != blockcnt - 1" to "i < blockcnt - 1" in the condition
above. I think that'd be more appropriate, but perhaps Jason is better
qualified to comment.

Thierry
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