Re: [PATCH] ACPI: APEI: ERST: Fix missing error code in erst_init()
From: Kees Cook <hidden>
Date: 2021-06-01 20:05:24
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lkml
On Tue, Jun 01, 2021 at 07:05:53PM +0800, Jiapeng Chong wrote:
The error code is missing in this code scenario, add the error code '-EINVAL' to the return value 'rc'. Eliminate the follow smatch warning: drivers/acpi/apei/erst.c:1114 erst_init() warn: missing error code 'rc'. Reported-by: Abaci Robot <redacted> Signed-off-by: Jiapeng Chong <redacted>
Is this a bug? I can't tell if this is meant to be a "silent" failure,
like with acpi_disabled, erst_disabled, etc.
If it _is_ a bug, then please include:
Fixes: a08f82d08053 ("ACPI, APEI, Error Record Serialization Table (ERST) support")
-Kees
quoted hunk ↗ jump to hunk
--- drivers/acpi/apei/erst.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c index 242f3c2..492d499 100644 --- a/drivers/acpi/apei/erst.c +++ b/drivers/acpi/apei/erst.c@@ -1110,9 +1110,10 @@ static int __init erst_init(void) status = acpi_get_table(ACPI_SIG_ERST, 0, (struct acpi_table_header **)&erst_tab); - if (status == AE_NOT_FOUND) + if (status == AE_NOT_FOUND) { + rc = -EINVAL; goto err; - else if (ACPI_FAILURE(status)) { + } else if (ACPI_FAILURE(status)) { const char *msg = acpi_format_exception(status); pr_err("Failed to get table, %s\n", msg); rc = -EINVAL;-- 1.8.3.1
-- Kees Cook