diff options
| author | Matt DeVillier <matt.devillier@gmail.com> | 2022-06-18 15:22:47 -0500 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-06-21 12:28:07 +0000 |
| commit | 06abb91b22b5911315e65ad6b287ba51a7f28eac (patch) | |
| tree | f564dfba7553841e9f91961b0fc62a7e77df69e4 /src/device | |
| parent | f887879815abc28c8decec2355ec22df6f230588 (diff) | |
device/i2c_bus: Check for self loop in bus link
When trying to find the parent i2c bus of a given device, ensure that
the bus link doesn't point to itself, else we'll get stuck in an
infinite loop.
Change-Id: I56cb6b2a3e4f98d2ce3ef2d8298e74d52661331c
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65229
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src/device')
| -rw-r--r-- | src/device/i2c_bus.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/device/i2c_bus.c b/src/device/i2c_bus.c index c355506f72..df36404660 100644 --- a/src/device/i2c_bus.c +++ b/src/device/i2c_bus.c @@ -25,7 +25,7 @@ struct bus *i2c_link(const struct device *const dev) (parent->ops->ops_i2c_bus || parent->ops->ops_smbus_bus)) break; - if (parent && parent->bus) + if (parent && parent->bus && link != parent->bus) link = parent->bus; else link = NULL; |