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| author | Robert Richter <rrichter@amd.com> | 2023-05-19 23:54:35 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2023-05-19 17:47:01 -0700 |
| commit | a70fc4ed20a6118837b0aecbbf789074935f473b (patch) | |
| tree | d2ca2b9dd2646ba9281eb1713d73f32ba3c9cb46 /drivers/cxl | |
| parent | e764f12208b99ac7892c4e3f6bf88d71ca71036f (diff) | |
| download | linux-stable-a70fc4ed20a6118837b0aecbbf789074935f473b.tar.gz linux-stable-a70fc4ed20a6118837b0aecbbf789074935f473b.tar.bz2 linux-stable-a70fc4ed20a6118837b0aecbbf789074935f473b.zip | |
cxl/port: Fix NULL pointer access in devm_cxl_add_port()
In devm_cxl_add_port() the port creation may fail and its associated
pointer does not contain a valid address. During error message
generation this invalid port address is used. Fix that wrong address
access.
Fixes: f3cd264c4ec1 ("cxl: Unify debug messages when calling devm_cxl_add_port()")
Signed-off-by: Robert Richter <rrichter@amd.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20230519215436.3394532-1-rrichter@amd.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/cxl')
| -rw-r--r-- | drivers/cxl/core/port.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/cxl/core/port.c b/drivers/cxl/core/port.c index da2068475fa2..e7c284c890bc 100644 --- a/drivers/cxl/core/port.c +++ b/drivers/cxl/core/port.c @@ -750,11 +750,10 @@ struct cxl_port *devm_cxl_add_port(struct device *host, struct device *uport, parent_port = parent_dport ? parent_dport->port : NULL; if (IS_ERR(port)) { - dev_dbg(uport, "Failed to add %s%s%s%s: %ld\n", - dev_name(&port->dev), - parent_port ? " to " : "", + dev_dbg(uport, "Failed to add%s%s%s: %ld\n", + parent_port ? " port to " : "", parent_port ? dev_name(&parent_port->dev) : "", - parent_port ? "" : " (root port)", + parent_port ? "" : " root port", PTR_ERR(port)); } else { dev_dbg(uport, "%s added%s%s%s\n", |