| Message ID | 20240411084913.305780-1-colin.i.king@gmail.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [next] tpm/eventlog: remove redundant assignment to variabel ret | expand |
On Thu Apr 11, 2024 at 11:49 AM EEST, Colin Ian King wrote: > Variable ret is being assigned and error code that is never read, it is > either being re-assigned in an error exit path or never referenced again > on the non-error path. The assignment is redundant and can be removed. > > Cleans up clang scan build warning: > drivers/char/tpm/eventlog/acpi.c:145:2: warning: Value stored to 'ret' > is never read [deadcode.DeadStores] > > Signed-off-by: Colin Ian King <colin.i.king@gmail.com> > --- > drivers/char/tpm/eventlog/acpi.c | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/drivers/char/tpm/eventlog/acpi.c b/drivers/char/tpm/eventlog/acpi.c > index bd757d836c5c..69533d0bfb51 100644 > --- a/drivers/char/tpm/eventlog/acpi.c > +++ b/drivers/char/tpm/eventlog/acpi.c > @@ -142,7 +142,6 @@ int tpm_read_log_acpi(struct tpm_chip *chip) > > log->bios_event_log_end = log->bios_event_log + len; > > - ret = -EIO; > virt = acpi_os_map_iomem(start, len); > if (!virt) { > dev_warn(&chip->dev, "%s: Failed to map ACPI memory\n", __func__); Thanks! Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> BR, Jarkko
diff --git a/drivers/char/tpm/eventlog/acpi.c b/drivers/char/tpm/eventlog/acpi.c index bd757d836c5c..69533d0bfb51 100644 --- a/drivers/char/tpm/eventlog/acpi.c +++ b/drivers/char/tpm/eventlog/acpi.c @@ -142,7 +142,6 @@ int tpm_read_log_acpi(struct tpm_chip *chip) log->bios_event_log_end = log->bios_event_log + len; - ret = -EIO; virt = acpi_os_map_iomem(start, len); if (!virt) { dev_warn(&chip->dev, "%s: Failed to map ACPI memory\n", __func__);
Variable ret is being assigned and error code that is never read, it is either being re-assigned in an error exit path or never referenced again on the non-error path. The assignment is redundant and can be removed. Cleans up clang scan build warning: drivers/char/tpm/eventlog/acpi.c:145:2: warning: Value stored to 'ret' is never read [deadcode.DeadStores] Signed-off-by: Colin Ian King <colin.i.king@gmail.com> --- drivers/char/tpm/eventlog/acpi.c | 1 - 1 file changed, 1 deletion(-)