Messages in this thread | | | Date | Sun, 12 Sep 2010 13:36:21 +0300 | Subject | Re: [PATCH] fs/btrfs/ordered-data.c: fixed compiler warnings for using uninitialized variable | From | Felipe Contreras <> |
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On Fri, Sep 10, 2010 at 5:42 PM, Frank Morales II <altf2o@gmail.com> wrote: > >From 1c304defc543738f82ccb18fe10b558dd2098d74 Mon Sep 17 00:00:00 2001 > From: Frank Morales II <altf2o@gmail.com> > Date: Fri, 10 Sep 2010 07:34:23 -0700 > Subject: [PATCH] fs/btrfs/ordered-data.c: fixed compiler warnings for using uninitialized variable > > In the function tree_search, the variable prev was used without first > being initialized, causing compiler warning messages. Initializing > prev to NULL resolved the issue. > > Kernal patched against: 2.6.36-rc3 (df423dc7)
Signed-of-by: Felipe Contreras <felipe.contreras@gmail.com>
I came up with exactly this patch, but this is my commit message:
Btrfs: fix compilation warning
fs/btrfs/ordered-data.c: In function ‘tree_search’: fs/btrfs/ordered-data.c:144: warning: ‘prev’ may be used uninitialized in this function fs/btrfs/ordered-data.c: In function ‘btrfs_lookup_first_ordered_extent’: fs/btrfs/ordered-data.c:144: warning: ‘prev’ may be used uninitialized in this function fs/btrfs/ordered-data.c:144: note: ‘prev’ was declared here fs/btrfs/ordered-data.c: In function ‘btrfs_lookup_ordered_extent’: fs/btrfs/ordered-data.c:144: warning: ‘prev’ may be used uninitialized in this function fs/btrfs/ordered-data.c:144: note: ‘prev’ was declared here fs/btrfs/ordered-data.c: In function ‘btrfs_lookup_ordered_range’: fs/btrfs/ordered-data.c:144: warning: ‘prev’ may be used uninitialized in this function fs/btrfs/ordered-data.c:144: note: ‘prev’ was declared here fs/btrfs/ordered-data.c: In function ‘btrfs_dec_test_ordered_pending’: fs/btrfs/ordered-data.c:144: warning: ‘prev’ may be used uninitialized in this function fs/btrfs/ordered-data.c:144: note: ‘prev’ was declared here
__tree_search() might not set &prev.
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