kernel: update v6.3 of patches

[openwrt/staging/svanheule.git] / target / linux / generic / backport-5.10 / 827-v6.3-0005-of-device-Do-not-ignore-error-code-in-of_device_ueve.patch

diff --git a/target/linux/generic/backport-5.10/827-v6.3-0005-of-device-Do-not-ignore-error-code-in-of_device_ueve.patch b/target/linux/generic/backport-5.10/827-v6.3-0005-of-device-Do-not-ignore-error-code-in-of_device_ueve.patch
new file mode 100644 (file)
index 0000000..64a2a20
--- /dev/null
+++ b/target/linux/generic/backport-5.10/827-v6.3-0005-of-device-Do-not-ignore-error-code-in-of_device_ueve.patch
@@ -0,0 +1,29 @@
+From 2295bed9bebe8d1eef276194fed5b5fbe89c5363 Mon Sep 17 00:00:00 2001
+From: Alexander Stein <alexander.stein@ew.tq-group.com>
+Date: Tue, 7 Feb 2023 12:05:30 +0100
+Subject: [PATCH] of: device: Do not ignore error code in
+ of_device_uevent_modalias
+
+of_device_get_modalias might return an error code, propagate that one.
+Otherwise the negative, signed integer is propagated to unsigned integer
+for the comparison resulting in a huge 'sl' size.
+
+Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
+Reviewed-by: Rob Herring <robh@kernel.org>
+Link: https://lore.kernel.org/r/20230207110531.1060252-3-alexander.stein@ew.tq-group.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/of/device.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/of/device.c
++++ b/drivers/of/device.c
+@@ -347,6 +347,8 @@ int of_device_uevent_modalias(struct dev
+ 
+       sl = of_device_get_modalias(dev, &env->buf[env->buflen-1],
+                                   sizeof(env->buf) - env->buflen);
++      if (sl < 0)
++              return sl;
+       if (sl >= (sizeof(env->buf) - env->buflen))
+               return -ENOMEM;
+       env->buflen += sl;