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| author | Wen Yang <wenyang@linux.alibaba.com> | 2019-11-08 09:36:48 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2019-11-15 22:01:13 +0100 |
| commit | a4c2fec16f5e6a5fee4865e6e0e91e2bc2d10f37 (patch) | |
| tree | d8223a4563157f1c77187c3ae7f785acda76d7a6 /drivers/i2c | |
| parent | i2c: acpi: Force bus speed to 400KHz if a Silead touchscreen is present (diff) | |
| download | linux-a4c2fec16f5e6a5fee4865e6e0e91e2bc2d10f37.tar.xz linux-a4c2fec16f5e6a5fee4865e6e0e91e2bc2d10f37.zip | |
i2c: core: fix use after free in of_i2c_notify
We can't use "adap->dev" after it has been freed.
Fixes: 5bf4fa7daea6 ("i2c: break out OF support into separate file")
Signed-off-by: Wen Yang <wenyang@linux.alibaba.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/i2c-core-of.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/i2c/i2c-core-of.c b/drivers/i2c/i2c-core-of.c index 6f632d543fcc..7eb41990bd6d 100644 --- a/drivers/i2c/i2c-core-of.c +++ b/drivers/i2c/i2c-core-of.c @@ -245,14 +245,14 @@ static int of_i2c_notify(struct notifier_block *nb, unsigned long action, } client = of_i2c_register_device(adap, rd->dn); - put_device(&adap->dev); - if (IS_ERR(client)) { dev_err(&adap->dev, "failed to create client for '%pOF'\n", rd->dn); + put_device(&adap->dev); of_node_clear_flag(rd->dn, OF_POPULATED); return notifier_from_errno(PTR_ERR(client)); } + put_device(&adap->dev); break; case OF_RECONFIG_CHANGE_REMOVE: /* already depopulated? */ |