linux/drivers/accel/qaic
Pranjal Ramajor Asha Kanojiya 8d0d16a3ef accel/qaic: Call DRM helper function to destroy prime GEM
smatch warning:
	drivers/accel/qaic/qaic_data.c:620 qaic_free_object() error:
		dereferencing freed memory 'obj->import_attach'

obj->import_attach is detached and freed using dma_buf_detach().
But used after free to decrease the dmabuf ref count using
dma_buf_put().

drm_prime_gem_destroy() handles this issue and performs the proper clean
up instead of open coding it in the driver.

Fixes: ff13be8303 ("accel/qaic: Add datapath")
Reported-by: Sukrut Bellary <sukrut.bellary@linux.com>
Closes: https://lore.kernel.org/all/20230610021200.377452-1-sukrut.bellary@linux.com/
Suggested-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com>
Reviewed-by: Carl Vanderlip <quic_carlv@quicinc.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230614161528.11710-1-quic_jhugo@quicinc.com
2023-06-20 08:07:29 -06:00
..
Kconfig accel/qaic: Add qaic driver to the build system 2023-04-06 08:23:03 +02:00
Makefile Revert "accel/qaic: Add mhi_qaic_cntl" 2023-04-13 12:08:08 +02:00
mhi_controller.c accel/qaic: Add MHI controller 2023-04-06 08:23:03 +02:00
mhi_controller.h accel/qaic: Add MHI controller 2023-04-06 08:23:03 +02:00
qaic_control.c accel/qaic: Fix NNC message corruption 2023-05-23 09:51:38 -06:00
qaic_data.c accel/qaic: Call DRM helper function to destroy prime GEM 2023-06-20 08:07:29 -06:00
qaic_drv.c accel/qaic: Fix NULL pointer deref in qaic_destroy_drm_device() 2023-06-09 11:07:28 -06:00
qaic.h