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| author | Sanjuán García, Jorge <Jorge.SanjuanGarcia@duagon.com> | 2023-10-19 17:15:34 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-11-28 20:07:13 +0300 |
| commit | 55d699e2d2ef7ff5a4ca6751f25dd84b29d11b1c (patch) | |
| tree | fba85fda6afd8ccad6e83ba451d1cd2297c58ada /drivers/mcb | |
| parent | afcde812ddf576e802f91ec180c3bb719a727bc3 (diff) | |
| download | linux-55d699e2d2ef7ff5a4ca6751f25dd84b29d11b1c.tar.xz | |
mcb: fix error handling for different scenarios when parsing
commit 63ba2d07b4be72b94216d20561f43e1150b25d98 upstream.
chameleon_parse_gdd() may fail for different reasons and end up
in the err tag. Make sure we at least always free the mcb_device
allocated with mcb_alloc_dev().
If mcb_device_register() fails, make sure to give up the reference
in the same place the device was added.
Fixes: 728ac3389296 ("mcb: mcb-parse: fix error handing in chameleon_parse_gdd()")
Cc: stable <stable@kernel.org>
Reviewed-by: Jose Javier Rodriguez Barbarin <JoseJavier.Rodriguez@duagon.com>
Signed-off-by: Jorge Sanjuan Garcia <jorge.sanjuangarcia@duagon.com>
Link: https://lore.kernel.org/r/20231019141434.57971-2-jorge.sanjuangarcia@duagon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mcb')
| -rw-r--r-- | drivers/mcb/mcb-core.c | 1 | ||||
| -rw-r--r-- | drivers/mcb/mcb-parse.c | 2 |
2 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mcb/mcb-core.c b/drivers/mcb/mcb-core.c index e7b6989d8b4a..a6b4ccc314ca 100644 --- a/drivers/mcb/mcb-core.c +++ b/drivers/mcb/mcb-core.c @@ -246,6 +246,7 @@ int mcb_device_register(struct mcb_bus *bus, struct mcb_device *dev) return 0; out: + put_device(&dev->dev); return ret; } diff --git a/drivers/mcb/mcb-parse.c b/drivers/mcb/mcb-parse.c index 656b6b71c768..1ae37e693de0 100644 --- a/drivers/mcb/mcb-parse.c +++ b/drivers/mcb/mcb-parse.c @@ -106,7 +106,7 @@ static int chameleon_parse_gdd(struct mcb_bus *bus, return 0; err: - put_device(&mdev->dev); + mcb_free_dev(mdev); return ret; } |