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kernel: leds-ws2812b: fix build with Linux >= 5.18

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The return value of the .remove function pointer has changed from
int to void with Linux 5.18. Use a precompiler macro to allow building
the leds-ws2812b module with both, Linux 5.15 and Linux 6.1.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle 2023-07-08 14:46:18 +01:00
parent d3e80e6e60
commit a1c87e7c74
1 changed files with 7 additions and 0 deletions
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7
package/kernel/leds-ws2812b/src/leds-ws2812b.c
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@ -17,6 +17,7 @@
#include <linux/property.h> #include <linux/property.h>
#include <linux/spi/spi.h> #include <linux/spi/spi.h>
#include <linux/mutex.h> #include <linux/mutex.h>
#include <linux/version.h>
#define WS2812B_BYTES_PER_COLOR 3 #define WS2812B_BYTES_PER_COLOR 3
#define WS2812B_NUM_COLORS 3 #define WS2812B_NUM_COLORS 3
@ -191,7 +192,11 @@ ERR_UNREG_LEDS:
return ret; return ret;
} }
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,18,0)
static void ws2812b_remove(struct spi_device *spi)
#else
static int ws2812b_remove(struct spi_device *spi) static int ws2812b_remove(struct spi_device *spi)
#endif
{ {
struct ws2812b_priv *priv = spi_get_drvdata(spi); struct ws2812b_priv *priv = spi_get_drvdata(spi);
int cur_led; int cur_led;
@ -201,7 +206,9 @@ static int ws2812b_remove(struct spi_device *spi)
kfree(priv->data_buf); kfree(priv->data_buf);
mutex_destroy(&priv->mutex); mutex_destroy(&priv->mutex);
#if LINUX_VERSION_CODE < KERNEL_VERSION(5,18,0)
return 0; return 0;
#endif
} }
static const struct spi_device_id ws2812b_spi_ids[] = { static const struct spi_device_id ws2812b_spi_ids[] = {