KVM: selftests: kvm_vm_elf_load() and elfhdr_get() should close fd

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kvm_vm_elf_load() and elfhdr_get() open one file each, but they
never close the opened file descriptor.  If a test repeatedly
creates and destroys a VM with __vm_create(), which
(directly or indirectly) calls those two functions, the test
might end up getting a open failure with EMFILE.
Fix those two functions to close the file descriptor.

Signed-off-by: Reiji Watanabe <reijiw@google.com>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Reviewed-by: Andrew Jones <andrew.jones@linux.dev>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20221220170921.2499209-2-reijiw@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Reiji Watanabe 2022-12-20 09:09:21 -08:00 • committed by Sean Christopherson

parent 7cb79f433e

commit bf10993313

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tools/testing/selftests/kvm/lib/elf.c

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