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Subject: media: venus: hfi: avoid null dereference in deinit Author: Luca Weiss <[email protected]> Date: Fri Jan 14 11:02:26 2022 +0000 If venus_probe fails at pm_runtime_put_sync the error handling first calls hfi_destroy and afterwards hfi_core_deinit. As hfi_destroy sets core->ops to NULL, hfi_core_deinit cannot call the core_deinit function anymore. Avoid this null pointer derefence by skipping the call when necessary. Signed-off-by: Luca Weiss <[email protected]> Signed-off-by: Stanimir Varbanov <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/platform/qcom/venus/hfi.c | 3 +++ 1 file changed, 3 insertions(+) --- diff --git a/drivers/media/platform/qcom/venus/hfi.c b/drivers/media/platform/qcom/venus/hfi.c index 4e2151fb47f0..1968f09ad177 100644 --- a/drivers/media/platform/qcom/venus/hfi.c +++ b/drivers/media/platform/qcom/venus/hfi.c @@ -104,6 +104,9 @@ int hfi_core_deinit(struct venus_core *core, bool blocking) mutex_lock(&core->lock); } + if (!core->ops) + goto unlock; + ret = core->ops->core_deinit(core); if (!ret) _______________________________________________ linuxtv-commits mailing list [email protected] https://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
