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author | Arnd Bergmann <arnd@arndb.de> | 2016-01-26 21:08:10 +0300 |
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committer | Bob Peterson <rpeterso@redhat.com> | 2016-03-15 17:46:11 +0300 |
commit | 67893f12e5374bbcaaffbc6e570acbc2714ea884 (patch) | |
tree | 74911bb5323cafb2e8efde1de51f44bd6b65bec1 /scripts/kernel-doc | |
parent | 7508abc4bdac43dc87d2fdd31527063f72da7020 (diff) | |
download | linux-67893f12e5374bbcaaffbc6e570acbc2714ea884.tar.xz |
gfs2: avoid uninitialized variable warning
We get a bogus warning about a potential uninitialized variable
use in gfs2, because the compiler does not figure out that we
never use the leaf number if get_leaf_nr() returns an error:
fs/gfs2/dir.c: In function 'get_first_leaf':
fs/gfs2/dir.c:802:9: warning: 'leaf_no' may be used uninitialized in this function [-Wmaybe-uninitialized]
fs/gfs2/dir.c: In function 'dir_split_leaf':
fs/gfs2/dir.c:1021:8: warning: 'leaf_no' may be used uninitialized in this function [-Wmaybe-uninitialized]
Changing the 'if (!error)' to 'if (!IS_ERR_VALUE(error))' is
sufficient to let gcc understand that this is exactly the same
condition as in IS_ERR() so it can optimize the code path enough
to understand it.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Diffstat (limited to 'scripts/kernel-doc')
0 files changed, 0 insertions, 0 deletions