From: "David E. Box" <david.e.box@linux.intel.com>
To: linux-kernel@vger.kernel.org,
platform-driver-x86@vger.kernel.org,
ilpo.jarvinen@linux.intel.com, rajvi.jingar@linux.intel.com
Subject: [PATCH V5 04/20] platform/x86/intel/vsec: Use cleanup.h
Date: Wed, 22 Nov 2023 20:03:39 -0800 [thread overview]
Message-ID: <20231123040355.82139-5-david.e.box@linux.intel.com> (raw)
In-Reply-To: <20231123040355.82139-1-david.e.box@linux.intel.com>
Use cleanup.h helpers to handle cleanup of resources in
intel_vsec_add_dev() after failures.
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
V5 - Assign no_free_ptr(res) to resource member. This fixes __must_check_fn
warning.
- Remove unsed ret variable.
V4 - Do no_free_ptr() before and in call to intel_vsec_add_aux().
- Add resource cleanup in this patch.
V3 - New patch.
drivers/platform/x86/intel/vsec.c | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)
diff --git a/drivers/platform/x86/intel/vsec.c b/drivers/platform/x86/intel/vsec.c
index 15866b7d3117..7dc3650f2757 100644
--- a/drivers/platform/x86/intel/vsec.c
+++ b/drivers/platform/x86/intel/vsec.c
@@ -15,6 +15,7 @@
#include <linux/auxiliary_bus.h>
#include <linux/bits.h>
+#include <linux/cleanup.h>
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/idr.h>
@@ -155,8 +156,9 @@ EXPORT_SYMBOL_NS_GPL(intel_vsec_add_aux, INTEL_VSEC);
static int intel_vsec_add_dev(struct pci_dev *pdev, struct intel_vsec_header *header,
struct intel_vsec_platform_info *info)
{
- struct intel_vsec_device *intel_vsec_dev;
- struct resource *res, *tmp;
+ struct intel_vsec_device __free(kfree) *intel_vsec_dev = NULL;
+ struct resource __free(kfree) *res = NULL;
+ struct resource *tmp;
unsigned long quirks = info->quirks;
int i;
@@ -178,10 +180,8 @@ static int intel_vsec_add_dev(struct pci_dev *pdev, struct intel_vsec_header *he
return -ENOMEM;
res = kcalloc(header->num_entries, sizeof(*res), GFP_KERNEL);
- if (!res) {
- kfree(intel_vsec_dev);
+ if (!res)
return -ENOMEM;
- }
if (quirks & VSEC_QUIRK_TABLE_SHIFT)
header->offset >>= TABLE_OFFSET_SHIFT;
@@ -199,7 +199,7 @@ static int intel_vsec_add_dev(struct pci_dev *pdev, struct intel_vsec_header *he
}
intel_vsec_dev->pcidev = pdev;
- intel_vsec_dev->resource = res;
+ intel_vsec_dev->resource = no_free_ptr(res);
intel_vsec_dev->num_resources = header->num_entries;
intel_vsec_dev->quirks = info->quirks;
@@ -208,7 +208,11 @@ static int intel_vsec_add_dev(struct pci_dev *pdev, struct intel_vsec_header *he
else
intel_vsec_dev->ida = &intel_vsec_ida;
- return intel_vsec_add_aux(pdev, NULL, intel_vsec_dev,
+ /*
+ * Pass the ownership of intel_vsec_dev and resource within it to
+ * intel_vsec_add_aux()
+ */
+ return intel_vsec_add_aux(pdev, NULL, no_free_ptr(intel_vsec_dev),
intel_vsec_name(header->id));
}
--
2.34.1
next prev parent reply other threads:[~2023-11-23 4:04 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-23 4:03 [PATCH V5 00/20] intel_pmc: Add telemetry API to read counters David E. Box
2023-11-23 4:03 ` [PATCH V5 01/20] platform/x86/intel/vsec: Fix xa_alloc memory leak David E. Box
2023-11-23 11:27 ` Ilpo Järvinen
2023-11-23 15:27 ` Ilpo Järvinen
2023-11-23 4:03 ` [PATCH V5 02/20] platform/x86/intel/vsec: Move structures to header David E. Box
2023-11-23 4:03 ` [PATCH V5 03/20] platform/x86/intel/vsec: remove platform_info from vsec device structure David E. Box
2023-11-23 4:03 ` David E. Box [this message]
2023-11-23 4:03 ` [PATCH V5 05/20] platform/x86/intel/vsec: Assign auxdev parent by argument David E. Box
2023-11-23 11:29 ` Ilpo Järvinen
2023-11-23 4:03 ` [PATCH V5 06/20] platform/x86/intel/vsec: Add intel_vsec_register David E. Box
2023-11-23 15:24 ` Ilpo Järvinen
2023-11-23 4:03 ` [PATCH V5 07/20] platform/x86/intel/vsec: Add base address field David E. Box
2023-11-23 4:03 ` [PATCH V5 08/20] platform/x86/intel/pmt: Add header to struct intel_pmt_entry David E. Box
2023-11-23 4:03 ` [PATCH V5 09/20] platform/x86/intel/pmt: telemetry: Export API to read telemetry David E. Box
2023-11-23 4:03 ` [PATCH V5 10/20] platform/x86:intel/pmc: Call pmc_get_low_power_modes from platform init David E. Box
2023-11-23 4:03 ` [PATCH V5 11/20] platform/x86/intel/pmc: Allow pmc_core_ssram_init to fail David E. Box
2023-11-23 4:03 ` [PATCH V5 12/20] asm-generic/io.h: iounmap/ioport_unmap cleanup.h support David E. Box
2023-11-23 14:30 ` Ilpo Järvinen
2023-11-23 16:23 ` David E. Box
2023-11-28 1:55 ` David E. Box
2023-11-29 8:45 ` Baoquan He
2023-12-10 15:24 ` Baoquan He
2023-11-24 9:49 ` kernel test robot
2023-11-23 4:03 ` [PATCH V5 13/20] platform/x86/intel/pmc: Cleanup SSRAM discovery David E. Box
2023-11-23 14:26 ` Ilpo Järvinen
2023-11-23 4:03 ` [PATCH V5 14/20] platform/x86/intel/pmc/mtl: Use return value from pmc_core_ssram_init() David E. Box
2023-11-23 14:26 ` Ilpo Järvinen
2023-11-23 4:03 ` [PATCH V5 15/20] platform/x86/intel/pmc: Find and register PMC telemetry entries David E. Box
2023-11-23 4:03 ` [PATCH V5 16/20] platform/x86/intel/pmc: Display LPM requirements for multiple PMCs David E. Box
2023-11-23 14:08 ` Ilpo Järvinen
2023-11-23 4:03 ` [PATCH V5 17/20] platform/x86/intel/pmc: Retrieve LPM information using Intel PMT David E. Box
2023-11-23 4:03 ` [PATCH V5 18/20] platform/x86/intel/pmc: Read low power mode requirements for MTL-M and MTL-P David E. Box
2023-11-23 4:03 ` [PATCH V5 19/20] platform/x86/intel/pmc: Add debug attribute for Die C6 counter David E. Box
2023-11-23 11:38 ` Ilpo Järvinen
2023-11-23 13:39 ` Ilpo Järvinen
2023-11-23 4:03 ` [PATCH V5 20/20] platform/x86/intel/pmc: Show Die C6 counter on Meteor Lake David E. Box
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