tree 4f6f797bbaf2d5708d3e01269c1019bd9fb205b5
parent 192cfd58774b4d17b2fe8bdc77d89c2ef4e0591d
author Jesper Juhl <jj@chaosbits.net> 1331147374 +0000
committer Alasdair G Kergon <agk@redhat.com> 1331147374 +0000

dm ioctl: do not leak argv if target message only contains whitespace

If 'argc' is zero we jump to the 'out:' label, but this leaks the
(unused) memory that 'dm_split_args()' allocated for 'argv' if the
string being split consisted entirely of whitespace.  Jump to the
'out_argv:' label instead to free up that memory.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>