linux-kernel - [PATCH 2/2] staging: pi433: fix naming when more than one radio is used

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Date:   Tue, 21 Nov 2017 00:05:50 +0100
From:   Marcin Ciupak <marcin.s.ciupak@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org
Subject: [PATCH 2/2] staging: pi433: fix naming when more than one radio is
 used

When using more than one hardware radio module pi433_probe fails as the
same name is used for all modules. Create unique name by adding minor
number to the device name.

Signed-off-by: Marcin Ciupak <marcin.s.ciupak@...il.com>
---
 drivers/staging/pi433/pi433_if.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index bc17676169cb..7a3e3101c483 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -1172,7 +1172,8 @@ static int pi433_probe(struct spi_device *spi)
 				    &spi->dev,
 				    device->devt,
 				    device,
-				    "pi433");
+				    "pi433.%d",
+				    device->minor);
 	if (IS_ERR(device->dev)) {
 		pr_err("pi433: device register failed\n");
 		retval = PTR_ERR(device->dev);
@@ -1188,7 +1189,8 @@ static int pi433_probe(struct spi_device *spi)
 	/* start tx thread */
 	device->tx_task_struct = kthread_run(pi433_tx_thread,
 					     device,
-					     "pi433_tx_task");
+					     "pi433.%d_tx_task",
+					     device->minor);
 	if (IS_ERR(device->tx_task_struct)) {
 		dev_dbg(device->dev, "start of send thread failed");
 		goto send_thread_failed;
-- 
2.15.0