linux-kernel - [PATCH v1 1/5] spi: pxa2xx: Move number of CS pins validation out of condition

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Date: Wed,  3 Apr 2024 20:06:35 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-spi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Daniel Mack <daniel@...que.org>,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	Robert Jarzmik <robert.jarzmik@...e.fr>,
	Mark Brown <broonie@...nel.org>
Subject: [PATCH v1 1/5] spi: pxa2xx: Move number of CS pins validation out of condition

There is no need to allocate chip_data and then validate number of
CS pins as it will have the same effect. Hence move number of CS pins
validation out of condition in setup().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/spi/spi-pxa2xx.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 1348249f8178..cc0e54f8d2c3 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1200,6 +1200,13 @@ static int setup(struct spi_device *spi)
 		break;
 	}
 
+	if (drv_data->ssp_type == CE4100_SSP) {
+		if (spi_get_chipselect(spi, 0) > 4) {
+			dev_err(&spi->dev, "failed setup: cs number must not be > 4.\n");
+			return -EINVAL;
+		}
+	}
+
 	/* Only allocate on the first setup */
 	chip = spi_get_ctldata(spi);
 	if (!chip) {
@@ -1207,14 +1214,6 @@ static int setup(struct spi_device *spi)
 		if (!chip)
 			return -ENOMEM;
 
-		if (drv_data->ssp_type == CE4100_SSP) {
-			if (spi_get_chipselect(spi, 0) > 4) {
-				dev_err(&spi->dev,
-					"failed setup: cs number must not be > 4.\n");
-				kfree(chip);
-				return -EINVAL;
-			}
-		}
 		chip->enable_dma = drv_data->controller_info->enable_dma;
 		chip->timeout = TIMOUT_DFLT;
 	}
-- 
2.43.0.rc1.1.gbec44491f096