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13 June 2022, 11:31:42 UTC
Revision b250f2f7792d15bcde98e0456781e2835556d5fa authored by Joerg Roedel on 19 May 2021, 13:52:44 UTC, committed by Borislav Petkov on 19 May 2021, 15:05:13 UTC 
x86/sev-es: Don't return NULL from sev_es_get_ghcb()
 
sev_es_get_ghcb() is called from several places but only one of them
checks the return value. The reaction to returning NULL is always the
same: calling panic() and kill the machine.

Instead of adding checks to all call sites, move the panic() into the
function itself so that it will no longer return NULL.

Fixes: 0786138c78e7 ("x86/sev-es: Add a Runtime #VC Exception Handler")
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: stable@vger.kernel.org # v5.10+
Link: https://lkml.kernel.org/r/20210519135251.30093-2-joro@8bytes.org
1 parent 0024430
History
Tip revision: b250f2f7792d15bcde98e0456781e2835556d5fa authored by Joerg Roedel on 19 May 2021, 13:52:44 UTC
x86/sev-es: Don't return NULL from sev_es_get_ghcb()
Tip revision: b250f2f
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