This is a note to let you know that I've just added the patch titled
crypto: atmel - fix checks of error code returned by devm_ioremap_resource()
to the 4.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
crypto-atmel-fix-checks-of-error-code-returned-by-devm_ioremap_resource.patch
and it can be found in the queue-4.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 9b52d55f4f0e2bb9a34abbcf99e05e17f1b3b281 Mon Sep 17 00:00:00 2001
From: Vladimir Zapolskiy <vz@xxxxxxxxx>
Date: Sun, 6 Mar 2016 03:21:52 +0200
Subject: crypto: atmel - fix checks of error code returned by devm_ioremap_resource()
From: Vladimir Zapolskiy <vz@xxxxxxxxx>
commit 9b52d55f4f0e2bb9a34abbcf99e05e17f1b3b281 upstream.
The change fixes potential oops while accessing iomem on invalid
address, if devm_ioremap_resource() fails due to some reason.
The devm_ioremap_resource() function returns ERR_PTR() and never
returns NULL, which makes useless a following check for NULL.
Signed-off-by: Vladimir Zapolskiy <vz@xxxxxxxxx>
Fixes: b0e8b3417a62 ("crypto: atmel - use devm_xxx() managed function")
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/crypto/atmel-aes.c | 4 ++--
drivers/crypto/atmel-sha.c | 4 ++--
drivers/crypto/atmel-tdes.c | 4 ++--
3 files changed, 6 insertions(+), 6 deletions(-)
--- a/drivers/crypto/atmel-aes.c
+++ b/drivers/crypto/atmel-aes.c
@@ -2085,9 +2085,9 @@ static int atmel_aes_probe(struct platfo
}
aes_dd->io_base = devm_ioremap_resource(&pdev->dev, aes_res);
- if (!aes_dd->io_base) {
+ if (IS_ERR(aes_dd->io_base)) {
dev_err(dev, "can't ioremap\n");
- err = -ENOMEM;
+ err = PTR_ERR(aes_dd->io_base);
goto res_err;
}
--- a/drivers/crypto/atmel-sha.c
+++ b/drivers/crypto/atmel-sha.c
@@ -1404,9 +1404,9 @@ static int atmel_sha_probe(struct platfo
}
sha_dd->io_base = devm_ioremap_resource(&pdev->dev, sha_res);
- if (!sha_dd->io_base) {
+ if (IS_ERR(sha_dd->io_base)) {
dev_err(dev, "can't ioremap\n");
- err = -ENOMEM;
+ err = PTR_ERR(sha_dd->io_base);
goto res_err;
}
--- a/drivers/crypto/atmel-tdes.c
+++ b/drivers/crypto/atmel-tdes.c
@@ -1417,9 +1417,9 @@ static int atmel_tdes_probe(struct platf
}
tdes_dd->io_base = devm_ioremap_resource(&pdev->dev, tdes_res);
- if (!tdes_dd->io_base) {
+ if (IS_ERR(tdes_dd->io_base)) {
dev_err(dev, "can't ioremap\n");
- err = -ENOMEM;
+ err = PTR_ERR(tdes_dd->io_base);
goto res_err;
}
Patches currently in stable-queue which might be from vz@xxxxxxxxx are
queue-4.5/crypto-atmel-fix-checks-of-error-code-returned-by-devm_ioremap_resource.patch
queue-4.5/crypto-ux500-fix-checks-of-error-code-returned-by-devm_ioremap_resource.patch
--
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