| Message ID | 20221130091158.4732-1-ilpo.jarvinen@linux.intel.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [1/1] fpga: m10bmc-sec: Fix probe rollback | expand |
On 2022-11-30 10:11, Ilpo Järvinen wrote: > Handle probe error rollbacks properly to avoid leaks. > > Fixes: 5cd339b370e2 ("fpga: m10bmc-sec: add max10 secure update functions") Reviewed-by: Marco Pagani <marpagan@redhat.com> > Reviewed-by: Matthew Gerlach <matthew.gerlach@linux.intel.com> > Reviewed-by: Russ Weight <russell.h.weight@intel.com> > Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> > --- > drivers/fpga/intel-m10-bmc-sec-update.c | 17 ++++++++++++----- > 1 file changed, 12 insertions(+), 5 deletions(-) > > diff --git a/drivers/fpga/intel-m10-bmc-sec-update.c b/drivers/fpga/intel-m10-bmc-sec-update.c > index 79d48852825e..03f1bd81c434 100644 > --- a/drivers/fpga/intel-m10-bmc-sec-update.c > +++ b/drivers/fpga/intel-m10-bmc-sec-update.c > @@ -574,20 +574,27 @@ static int m10bmc_sec_probe(struct platform_device *pdev) > len = scnprintf(buf, SEC_UPDATE_LEN_MAX, "secure-update%d", > sec->fw_name_id); > sec->fw_name = kmemdup_nul(buf, len, GFP_KERNEL); > - if (!sec->fw_name) > - return -ENOMEM; > + if (!sec->fw_name) { > + ret = -ENOMEM; > + goto fw_name_fail; > + } > > fwl = firmware_upload_register(THIS_MODULE, sec->dev, sec->fw_name, > &m10bmc_ops, sec); > if (IS_ERR(fwl)) { > dev_err(sec->dev, "Firmware Upload driver failed to start\n"); > - kfree(sec->fw_name); > - xa_erase(&fw_upload_xa, sec->fw_name_id); > - return PTR_ERR(fwl); > + ret = PTR_ERR(fwl); > + goto fw_uploader_fail; > } > > sec->fwl = fwl; > return 0; > + > +fw_uploader_fail: > + kfree(sec->fw_name); > +fw_name_fail: > + xa_erase(&fw_upload_xa, sec->fw_name_id); > + return ret; > } > > static int m10bmc_sec_remove(struct platform_device *pdev)
diff --git a/drivers/fpga/intel-m10-bmc-sec-update.c b/drivers/fpga/intel-m10-bmc-sec-update.c index 79d48852825e..03f1bd81c434 100644 --- a/drivers/fpga/intel-m10-bmc-sec-update.c +++ b/drivers/fpga/intel-m10-bmc-sec-update.c @@ -574,20 +574,27 @@ static int m10bmc_sec_probe(struct platform_device *pdev) len = scnprintf(buf, SEC_UPDATE_LEN_MAX, "secure-update%d", sec->fw_name_id); sec->fw_name = kmemdup_nul(buf, len, GFP_KERNEL); - if (!sec->fw_name) - return -ENOMEM; + if (!sec->fw_name) { + ret = -ENOMEM; + goto fw_name_fail; + } fwl = firmware_upload_register(THIS_MODULE, sec->dev, sec->fw_name, &m10bmc_ops, sec); if (IS_ERR(fwl)) { dev_err(sec->dev, "Firmware Upload driver failed to start\n"); - kfree(sec->fw_name); - xa_erase(&fw_upload_xa, sec->fw_name_id); - return PTR_ERR(fwl); + ret = PTR_ERR(fwl); + goto fw_uploader_fail; } sec->fwl = fwl; return 0; + +fw_uploader_fail: + kfree(sec->fw_name); +fw_name_fail: + xa_erase(&fw_upload_xa, sec->fw_name_id); + return ret; } static int m10bmc_sec_remove(struct platform_device *pdev)
Handle probe error rollbacks properly to avoid leaks. Fixes: 5cd339b370e2 ("fpga: m10bmc-sec: add max10 secure update functions") Reviewed-by: Matthew Gerlach <matthew.gerlach@linux.intel.com> Reviewed-by: Russ Weight <russell.h.weight@intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> --- drivers/fpga/intel-m10-bmc-sec-update.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-)