The new cleanup.h facilities that arrived in v6.5-rc1 can replace the the usage of devm semantics in acpi_nfit_init_interleave_set(). That routine appears to only be using devm to avoid goto statements. The new __free() annotation at variable declaration time can achieve the same effect more efficiently.
There is no end user visible side effects of this patch, I was motivated to send this cleanup to practice using the new helpers. Suggested-by: Dave Jiang <[email protected]> Suggested-by: Andy Shevchenko <[email protected]> Reviewed-by: Dave Jiang <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]> Signed-off-by: Michal Wilczynski <[email protected]> --- Dan, would you like me to give you credit for the changelog changes with Co-developed-by tag ? v3: - changed changelog v2: - removed first commit from the patchset, as the commit couldn't be marked as a fix - squashed those commits together, since the second one were mostly overwriting the previous one drivers/acpi/nfit/core.c | 21 ++++++++------------- 1 file changed, 8 insertions(+), 13 deletions(-) diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 3826f49d481b..67a844a705c4 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -2257,26 +2257,23 @@ static int acpi_nfit_init_interleave_set(struct acpi_nfit_desc *acpi_desc, struct nd_region_desc *ndr_desc, struct acpi_nfit_system_address *spa) { + u16 nr = ndr_desc->num_mappings; + struct nfit_set_info2 *info2 __free(kfree) = + kcalloc(nr, sizeof(*info2), GFP_KERNEL); + struct nfit_set_info *info __free(kfree) = + kcalloc(nr, sizeof(*info), GFP_KERNEL); struct device *dev = acpi_desc->dev; struct nd_interleave_set *nd_set; - u16 nr = ndr_desc->num_mappings; - struct nfit_set_info2 *info2; - struct nfit_set_info *info; int i; + if (!info || !info2) + return -ENOMEM; + nd_set = devm_kzalloc(dev, sizeof(*nd_set), GFP_KERNEL); if (!nd_set) return -ENOMEM; import_guid(&nd_set->type_guid, spa->range_guid); - info = devm_kcalloc(dev, nr, sizeof(*info), GFP_KERNEL); - if (!info) - return -ENOMEM; - - info2 = devm_kcalloc(dev, nr, sizeof(*info2), GFP_KERNEL); - if (!info2) - return -ENOMEM; - for (i = 0; i < nr; i++) { struct nd_mapping_desc *mapping = &ndr_desc->mapping[i]; struct nvdimm *nvdimm = mapping->nvdimm; @@ -2337,8 +2334,6 @@ static int acpi_nfit_init_interleave_set(struct acpi_nfit_desc *acpi_desc, } ndr_desc->nd_set = nd_set; - devm_kfree(dev, info); - devm_kfree(dev, info2); return 0; } -- 2.41.0
