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ae282d2c22
In nvmap_try_duplicate_by_ivmid(), the return pointer from nvmap_duplicate_handle() is getting dereferenced without checking whether the pointer is error or valid. This is causing kernel panic. Fix this by checking if the return pointer is invalid then return error. Bug 3766497 Change-Id: I010893c9ebda60e313c4f776044a123073399ef2 Signed-off-by: Ashish Mhetre <amhetre@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2846180 Reviewed-by: svcacv <svcacv@nvidia.com> Reviewed-by: Ketan Patil <ketanp@nvidia.com> Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com> Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com> Reviewed-by: Sachin Nikam <snikam@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>