linux-kernel - [tip: x86/microcode] platform/x86/intel/ifs: Return a more appropriate error code

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Date:   Sat, 19 Nov 2022 16:24:13 -0000
From:   "tip-bot2 for Jithu Joseph" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Jithu Joseph <jithu.joseph@...el.com>,
        Borislav Petkov <bp@...e.de>, Tony Luck <tony.luck@...el.com>,
        Sohil Mehta <sohil.mehta@...el.com>,
        Hans de Goede <hdegoede@...hat.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: x86/microcode] platform/x86/intel/ifs: Return a more
 appropriate error code

The following commit has been merged into the x86/microcode branch of tip:

Commit-ID:     f4e209e956b5d66f0e6e34e89f19811c2c1e596e
Gitweb:        https://git.kernel.org/tip/f4e209e956b5d66f0e6e34e89f19811c2c1e596e
Author:        Jithu Joseph <jithu.joseph@...el.com>
AuthorDate:    Wed, 16 Nov 2022 19:59:21 -08:00
Committer:     Borislav Petkov <bp@...e.de>
CommitterDate: Fri, 18 Nov 2022 21:30:36 +01:00

platform/x86/intel/ifs: Return a more appropriate error code

scan_chunks_sanity_check() returns -ENOMEM if it encounters an error
while copying IFS test image from memory to Secure Memory.

Return -EIO in this scenario, as it is more appropriate.

Signed-off-by: Jithu Joseph <jithu.joseph@...el.com>
Signed-off-by: Borislav Petkov <bp@...e.de>
Reviewed-by: Tony Luck <tony.luck@...el.com>
Reviewed-by: Sohil Mehta <sohil.mehta@...el.com>
Reviewed-by: Hans de Goede <hdegoede@...hat.com>
Link: https://lore.kernel.org/r/20221117035935.4136738-3-jithu.joseph@intel.com
---
 drivers/platform/x86/intel/ifs/load.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/intel/ifs/load.c b/drivers/platform/x86/intel/ifs/load.c
index d056617..89ce265 100644
--- a/drivers/platform/x86/intel/ifs/load.c
+++ b/drivers/platform/x86/intel/ifs/load.c
@@ -157,8 +157,10 @@ static int scan_chunks_sanity_check(struct device *dev)
 		INIT_WORK(&local_work.w, copy_hashes_authenticate_chunks);
 		schedule_work_on(cpu, &local_work.w);
 		wait_for_completion(&ifs_done);
-		if (ifsd->loading_error)
+		if (ifsd->loading_error) {
+			ret = -EIO;
 			goto out;
+		}
 		package_authenticated[curr_pkg] = 1;
 	}
 	ret = 0;