From: Colin Ian King colin.king@canonical.com
commit be59d57f98065af0b8472f66a0a969207b168680 upstream.
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 colin.king@canonical.com Cc: Ard Biesheuvel ard.biesheuvel@linaro.org Cc: Jerry Snitselaar jsnitsel@redhat.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Peter Zijlstra peterz@infradead.org Cc: Thomas Gleixner tglx@linutronix.de Cc: kernel-janitors@vger.kernel.org Cc: linux-efi@vger.kernel.org Fixes: e658c82be556 ("efi/tpm: Only set 'efi_tpm_final_log_size' after successful event log parsing") Link: https://lkml.kernel.org/r/20191008100153.8499-1-colin.king@canonical.com Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/firmware/efi/tpm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/firmware/efi/tpm.c +++ b/drivers/firmware/efi/tpm.c @@ -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) {