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efi/tpm: Fix sanity check of unsigned tbl_size being less than zero

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Currently the check for tbl_size being less than zero is always false
because tbl_size is unsigned. Fix this by making it a signed int.

Addresses-Coverity: ("Unsigned compared against 0")
Signed-off-by: Colin Ian King <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Jerry Snitselaar <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: [email protected]
Fixes: e658c82be5 ("efi/tpm: Only set 'efi_tpm_final_log_size' after successful event log parsing")
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Colin Ian King 2019-10-08 11:01:53 +01:00 • committed by Ingo Molnar
commit be59d57f98
1 changed files with 1 additions and 1 deletions
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2
drivers/firmware/efi/tpm.c
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@ -40,7 +40,7 @@ int __init efi_tpm_eventlog_init(void)
{
struct linux_efi_tpm_eventlog *log_tbl;
struct efi_tcg2_final_events_table *final_tbl;
unsigned int tbl_size;
int tbl_size;
int ret = 0;
if (efi.tpm_log == EFI_INVALID_TABLE_ADDR) {