ext4: fix smatch warning in move_extent.c's mext_replace_branches()

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Commit 2147b1a6a4 resulted in a new smatch warning:

> fs/ext4/move_extent.c:693 mext_replace_branches()
> 	 warn: variable dereferenced before check 'dext' (see line 683)

Fix this by adding a check to make sure dext is non-NULL before we
derefrence it.

Signed-off-by: Akria Fujita <a-fujita@rs.jp.nec.com>
[ modified by tytso to make sure an ext4_error is called ]
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

...

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Akria Fujita 2013-02-01 20:52:46 -05:00 • committed by Theodore Ts'o

parent 524c19ebc9

commit 87e698734b

1 changed files with 4 additions and 1 deletions

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fs/ext4/move_extent.c

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