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(parent: 61377bc) | patch
staging: ccree: check DMA pool buf !NULL before free
authorGilad Ben-Yossef <gilad@benyossef.com>
Sun, 7 Jan 2018 12:14:24 +0000 (12:14 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 20 Oct 2018 07:48:53 +0000 (09:48 +0200)
commit8e6173c1246786d344548db3d10745ae250adb41
treec6bddf81f4c8711bc3b957cc667b8a2ec0041cd5tree
parent61377bc808612a9ff40fb4929a5a7bc662c531a3commit | diff
staging: ccree: check DMA pool buf !NULL before free

commit 2f7caf6b02145bd9cd9d0b56204f51a5fefe7790 upstream.

If we ran out of DMA pool buffers, we get into the unmap
code path with a NULL before. Deal with this by checking
the virtual mapping is not NULL.

Cc: stable@vger.kernel.org
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/ccree/ssi_buffer_mgr.c diff | blob | history
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