accel/ivpu: Fix general protection fault in ivpu_bo_list()

commit 4b2efb9db0c22a130bbd1275e489b42c02d08050 upstream.

Check if ctx is not NULL before accessing its fields.

Fixes: 37dee2a2f433 ("accel/ivpu: Improve buffer object debug logs")
Cc: stable@vger.kernel.org # v6.8
Reviewed-by: Karol Wachowski <karol.wachowski@intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241210130939.1575610-2-jacek.lawrynowicz@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/accel/ivpu/ivpu_gem.c b/drivers/accel/ivpu/ivpu_gem.c
index 1b409dbd332d806ba310ad6e6b2c986cb1fd32b8..c8daffd90f3001a52474ef06b6005f2314156126 100644 (file)
--- a/drivers/accel/ivpu/ivpu_gem.c
+++ b/drivers/accel/ivpu/ivpu_gem.c
@@ -406,7 +406,7 @@ static void ivpu_bo_print_info(struct ivpu_bo *bo, struct drm_printer *p)
        mutex_lock(&bo->lock);
 
        drm_printf(p, "%-9p %-3u 0x%-12llx %-10lu 0x%-8x %-4u",
-                  bo, bo->ctx->id, bo->vpu_addr, bo->base.base.size,
+                  bo, bo->ctx ? bo->ctx->id : 0, bo->vpu_addr, bo->base.base.size,
                   bo->flags, kref_read(&bo->base.base.refcount));
 
        if (bo->base.pages)