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Tue, 24 Sep 2019 07:46:31 +0000 From: To: , , , , , CC: , , , , , , , , , , , , Subject: [PATCH v2 12/22] mtd: spi-nor: Report error in spi_nor_xread_sr() Thread-Topic: [PATCH v2 12/22] mtd: spi-nor: Report error in spi_nor_xread_sr() Thread-Index: AQHVcqwutlEKVRtIxkuyc9Dc3NHoBw== Date: Tue, 24 Sep 2019 07:46:31 +0000 Message-ID: <20190924074533.6618-13-tudor.ambarus@microchip.com> References: <20190924074533.6618-1-tudor.ambarus@microchip.com> In-Reply-To: <20190924074533.6618-1-tudor.ambarus@microchip.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: VI1PR0101CA0082.eurprd01.prod.exchangelabs.com (2603:10a6:800:1f::50) To MN2PR11MB4448.namprd11.prod.outlook.com (2603:10b6:208:193::29) x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: git-send-email 2.9.5 x-originating-ip: [94.177.32.156] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 35c120d4-49da-4f1d-c9da-08d740c350fe x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600167)(711020)(4605104)(1401327)(2017052603328)(7193020);SRVR:MN2PR11MB4319; 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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 35c120d4-49da-4f1d-c9da-08d740c350fe X-MS-Exchange-CrossTenant-originalarrivaltime: 24 Sep 2019 07:46:31.9119 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3f4057f3-b418-4d4e-ba84-d55b4e897d88 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: dfQIUN+XDLiy2N1VeUMynU80Sp/BlcUqJ2GfHcbAQYs7dPi7j7x0jvQKCYhiX17KqNM/h0DZrRXljuK38mXc09tdu2B9ugDNh/1kTly5Spg= X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR11MB4319 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Tudor Ambarus Report error inside spi_nor_xread_sr(), to spare the callers of duplicating the error message. Add method description. Drop unnecessary cast to int when reporting the error. Comparing the return code with zero is enough, drop the checking for negative return values. Signed-off-by: Tudor Ambarus --- drivers/mtd/spi-nor/spi-nor.c | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 33130ee84164..b7f86f518331 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -537,8 +537,17 @@ static int spi_nor_read_cr(struct spi_nor *nor, u8 *cr= ) return ret; } =20 +/** + * spi_nor_xread_sr() - Read the Status Register on S3AN flashes. + * @nor: pointer to 'struct spi_nor' + * @sr: buffer where the value of the Status Register will be written. + * + * Return: 0 on success, -errno otherwise. + */ static int spi_nor_xread_sr(struct spi_nor *nor, u8 *sr) { + int ret; + if (nor->spimem) { struct spi_mem_op op =3D SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_XRDSR, 1), @@ -546,10 +555,16 @@ static int spi_nor_xread_sr(struct spi_nor *nor, u8 *= sr) SPI_MEM_OP_NO_DUMMY, SPI_MEM_OP_DATA_IN(1, sr, 1)); =20 - return spi_mem_exec_op(nor->spimem, &op); + ret =3D spi_mem_exec_op(nor->spimem, &op); + } else { + ret =3D nor->controller_ops->read_reg(nor, SPINOR_OP_XRDSR, + sr, 1); } =20 - return nor->controller_ops->read_reg(nor, SPINOR_OP_XRDSR, sr, 1); + if (ret) + dev_err(nor->dev, "error %d reading XRDSR\n", ret); + + return ret; } =20 static int s3an_sr_ready(struct spi_nor *nor) @@ -557,10 +572,8 @@ static int s3an_sr_ready(struct spi_nor *nor) int ret; =20 ret =3D spi_nor_xread_sr(nor, nor->bouncebuf); - if (ret < 0) { - dev_err(nor->dev, "error %d reading XRDSR\n", (int) ret); + if (ret) return ret; - } =20 return !!(nor->bouncebuf[0] & XSR_RDY); } @@ -2800,10 +2813,8 @@ static int s3an_nor_setup(struct spi_nor *nor, int ret; =20 ret =3D spi_nor_xread_sr(nor, nor->bouncebuf); - if (ret < 0) { - dev_err(nor->dev, "error %d reading XRDSR\n", (int) ret); + if (ret) return ret; - } =20 nor->erase_opcode =3D SPINOR_OP_XSE; nor->program_opcode =3D SPINOR_OP_XPP; --=20 2.9.5