USB: composite: Fix bug: should test set_alt function pointer before use it
Signed-off-by: Bryan Wu <cooloney@kernel.org> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Bryan Wu <cooloney@kernel.org> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
mentioned in commit 7e4da3fc
·mentioned in commit 7e4da3fc
mentioned in commit 7e4da3fc
·mentioned in commit 7e4da3fc