Messages in this thread | | | Date | Fri, 19 May 2023 16:33:20 -0700 | Subject | Re: [PATCH] cxl/port: Fix NULL pointer access in devm_cxl_add_port() | From | Dave Jiang <> |
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On 5/19/23 2:54 PM, Robert Richter wrote: > 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>
> --- > drivers/cxl/core/port.c | 7 +++---- > 1 file 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", > > base-commit: e764f12208b99ac7892c4e3f6bf88d71ca71036f
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