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kthread creation may possibly fail inside race_signal_callback(). In
such a case stop the already started threads, put the already taken
references to them and return with error code.
Found by Linux Verification Center (linuxtesting.org).
Fixes: 2989f6451084 ("dma-buf: Add selftests for dma-fence")
Cc: stable@vger.kernel.org
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Reviewed-by: T.J. Mercier <tjmercier@google.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240522181308.841686-1-pchelkin@ispras.ru
Signed-off-by: Christian König <christian.koenig@amd.com>
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Add a kthread_stop_put() helper that stops a thread and puts its task
struct. Use it to replace the various instances of kthread_stop()
followed by put_task_struct().
Remove the kthread_stop_put() macro in usbip that is similar but doesn't
return the result of kthread_stop().
[agruenba@redhat.com: fix kerneldoc comment]
Link: https://lkml.kernel.org/r/20230911111730.2565537-1-agruenba@redhat.com
[akpm@linux-foundation.org: document kthread_stop_put()'s argument]
Link: https://lkml.kernel.org/r/20230907234048.2499820-1-agruenba@redhat.com
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Here's enabling software signaling on fence for selftest.
Signed-off-by: Arvind Yadav <Arvind.Yadav@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220914164321.2156-4-Arvind.Yadav@amd.com
Signed-off-by: Christian König <christian.koenig@amd.com>
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Use semicolons and braces.
Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/990bf6f33ccaf73ad56eb4bea8bd2c0db5e90a31.1598331148.git.joe@perches.com
Signed-off-by: Christian König <christian.koenig@amd.com>
(cherry picked from commit e4abd7ad2b779c6309237a79bdcc5a128fb755ef)
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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The dma-fence selftest uses an on-stack timer that requires explicit
annotation for debugobjects.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111442
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190820122118.13698-1-chris@chris-wilson.co.uk
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Use the %zu format specifier for a size_t returned by sizeof.
Reported-by: kbuild-all@01.org
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190819195740.27608-1-chris@chris-wilson.co.uk
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Exercise the dma-fence API exported to drivers.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190819095928.32091-2-chris@chris-wilson.co.uk
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