[Xf86-video-armsoc] NULL pointer access error from xf86-video-armsoc driver

[Eason Tang]

Recentry, we got many NULL pointer access error reports.

It always shows the same error from xf86-video-armsoc driver.

Could you please assign xf86-video-armsoc engineer, and check the following error case with highest priority?



< armsoc_dumb.c >

void mali_bo_clear_dmabuf(struct mali_bo *bo)
{
        assert(bo->refcnt > 0);
        assert(mali_bo_has_dmabuf(bo));

        close(bo->dmabuf);
        bo->dmabuf = -1;
}



close -> ... -> filp_close -> locks_remove_posix -> filp->f_path.dentry ==> kernel oops because it is NULL

Please check if you have any previous history like this, and let us know which approach will be better to debug it.

It is reproduced very rarely (once or twice in a day), so your quick response will be very helpful to get more detail debug information.

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