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Subject: media: venus: core: Fix a potential NULL pointer dereference in an error handling path Author: Christophe JAILLET <[email protected]> Date: Thu Aug 12 07:14:22 2021 +0200 The normal path of the function makes the assumption that 'pm_ops->core_power' may be NULL. We should make the same assumption in the error handling path or a NULL pointer dereference may occur. Add the missing test before calling 'pm_ops->core_power' Fixes: 9e8efdb57879 ("media: venus: core: vote for video-mem path") Signed-off-by: Christophe JAILLET <[email protected]> Signed-off-by: Stanimir Varbanov <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/platform/qcom/venus/core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c index f5fa81896012..fd32385485fa 100644 --- a/drivers/media/platform/qcom/venus/core.c +++ b/drivers/media/platform/qcom/venus/core.c @@ -473,7 +473,8 @@ static __maybe_unused int venus_runtime_suspend(struct device *dev) err_video_path: icc_set_bw(core->cpucfg_path, kbps_to_icc(1000), 0); err_cpucfg_path: - pm_ops->core_power(core, POWER_ON); + if (pm_ops->core_power) + pm_ops->core_power(core, POWER_ON); return ret; } _______________________________________________ linuxtv-commits mailing list [email protected] https://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
