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From: Michael Walle <michael@walle.cc>
To: "Miquel Raynal" <miquel.raynal@bootlin.com>,
	"Richard Weinberger" <richard@nod.at>,
	"Vignesh Raghavendra" <vigneshr@ti.com>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
	"Srinivas Kandagatla" <srinivas.kandagatla@linaro.org>,
	"Shawn Guo" <shawnguo@kernel.org>, "Li Yang" <leoyang.li@nxp.com>,
	"Rafał Miłecki" <rafal@milecki.pl>,
	"Frank Rowand" <frowand.list@gmail.com>
Cc: linux-mtd@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Ahmad Fatoum <a.fatoum@pengutronix.de>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Michael Walle <michael@walle.cc>
Subject: [PATCH v2 05/20] nvmem: core: drop the removal of the cells in nvmem_add_cells()
Date: Fri,  2 Sep 2022 00:18:42 +0200	[thread overview]
Message-ID: <20220901221857.2600340-6-michael@walle.cc> (raw)
In-Reply-To: <20220901221857.2600340-1-michael@walle.cc>

If nvmem_add_cells() fails, the whole nvmem_register() will fail
and the cells will then be removed anyway. This is a prepartion
to introduce a nvmem_add_one_cell() which can then be used by
nvmem_add_cells().

This is then the same to what nvmem_add_cells_from_table() and
nvmem_add_cells_from_of() do.

Signed-off-by: Michael Walle <michael@walle.cc>
---
changes since v1:
 - none

 drivers/nvmem/core.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index ab055e4fc409..be38e62fd190 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -515,7 +515,7 @@ static int nvmem_add_cells(struct nvmem_device *nvmem,
 		    int ncells)
 {
 	struct nvmem_cell_entry **cells;
-	int i, rval;
+	int i, rval = 0;
 
 	cells = kcalloc(ncells, sizeof(*cells), GFP_KERNEL);
 	if (!cells)
@@ -525,28 +525,22 @@ static int nvmem_add_cells(struct nvmem_device *nvmem,
 		cells[i] = kzalloc(sizeof(**cells), GFP_KERNEL);
 		if (!cells[i]) {
 			rval = -ENOMEM;
-			goto err;
+			goto out;
 		}
 
 		rval = nvmem_cell_info_to_nvmem_cell_entry(nvmem, &info[i], cells[i]);
 		if (rval) {
 			kfree(cells[i]);
-			goto err;
+			goto out;
 		}
 
 		nvmem_cell_entry_add(cells[i]);
 	}
 
+out:
 	/* remove tmp array */
 	kfree(cells);
 
-	return 0;
-err:
-	while (i--)
-		nvmem_cell_entry_drop(cells[i]);
-
-	kfree(cells);
-
 	return rval;
 }
 
-- 
2.30.2


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  parent reply	other threads:[~2022-09-01 22:21 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-01 22:18 [PATCH v2 00/20] nvmem: core: introduce NVMEM layouts Michael Walle
2022-09-01 22:18 ` [PATCH v2 01/20] net: add helper eth_addr_add() Michael Walle
2022-09-01 23:22   ` Randy Dunlap
2022-09-02  7:27     ` Michael Walle
2022-09-01 22:18 ` [PATCH v2 02/20] of: base: add of_parse_phandle_with_optional_args() Michael Walle
2022-09-01 22:18 ` [PATCH v2 03/20] nvmem: core: add an index parameter to the cell Michael Walle
2022-09-09  8:12   ` Srinivas Kandagatla
2022-09-01 22:18 ` [PATCH v2 04/20] nvmem: core: move struct nvmem_cell_info to nvmem-provider.h Michael Walle
2022-09-01 22:18 ` Michael Walle [this message]
2022-09-01 22:18 ` [PATCH v2 06/20] nvmem: core: add nvmem_add_one_cell() Michael Walle
2022-09-09  8:52   ` Srinivas Kandagatla
2022-09-01 22:18 ` [PATCH v2 07/20] nvmem: core: use nvmem_add_one_cell() in nvmem_add_cells_from_of() Michael Walle
2022-09-01 22:18 ` [PATCH v2 08/20] nvmem: core: introduce NVMEM layouts Michael Walle
2022-09-01 22:18 ` [PATCH v2 09/20] nvmem: core: add per-cell post processing Michael Walle
2022-09-01 22:18 ` [PATCH v2 10/20] nvmem: core: allow to modify a cell before adding it Michael Walle
2022-09-01 22:18 ` [PATCH v2 11/20] nvmem: imx-ocotp: replace global post processing with layouts Michael Walle
2022-09-07 12:31   ` Michael Walle
2022-09-01 22:18 ` [PATCH v2 12/20] nvmem: cell: drop global cell_post_process Michael Walle
2022-09-01 22:18 ` [PATCH v2 13/20] nvmem: core: drop priv pointer in post process callback Michael Walle
2022-09-09  8:52   ` Srinivas Kandagatla
2022-09-09  8:58     ` Michael Walle
2022-09-09  9:08       ` Srinivas Kandagatla
2022-09-09  9:39         ` Michael Walle
2022-09-01 22:18 ` [PATCH v2 14/20] dt-bindings: mtd: relax the nvmem compatible string Michael Walle
2022-09-08 12:21   ` Krzysztof Kozlowski
2022-09-01 22:18 ` [PATCH v2 15/20] dt-bindings: nvmem: add YAML schema for the sl28 vpd layout Michael Walle
2022-09-08 12:22   ` Krzysztof Kozlowski
2022-09-12 19:20   ` Rob Herring
2022-09-13 14:21     ` Michael Walle
2022-09-22  9:22       ` Miquel Raynal
2022-09-01 22:18 ` [PATCH v2 16/20] nvmem: layouts: add sl28vpd layout Michael Walle
2022-09-01 22:18 ` [PATCH v2 17/20] nvmem: core: export nvmem device size Michael Walle
2022-09-01 22:18 ` [PATCH v2 18/20] arm64: dts: ls1028a: sl28: get MAC addresses from VPD Michael Walle
2022-09-01 22:18 ` [RFC PATCH v2 19/20] nvmem: layouts: rewrite the u-boot-env driver as a NVMEM layout Michael Walle
2022-09-21 10:37   ` Miquel Raynal
2022-09-01 22:18 ` [RFC PATCH v2 20/20] nvmem: layouts: u-boot-env: add device node Michael Walle
2022-09-21  9:58 ` [PATCH v2 00/20] nvmem: core: introduce NVMEM layouts Miquel Raynal
2022-09-22 21:22   ` Srinivas Kandagatla
2022-09-23  8:31     ` Miquel Raynal
2022-09-23 15:47 ` Miquel Raynal
2022-09-23 17:28   ` Michael Walle

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