This patch puts a buffer on the stack instead of heap. There is no need
to hold the buffer on the heap.
Signed-off-by: Alexander Aring <alex.ar...@gmail.com>
---
drivers/net/ieee802154/at86rf230.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/drivers/net/ieee802154/at86rf230.c
b/drivers/net/ieee802154/at86rf230.c
index c4b1813..39cdc09 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -264,7 +264,7 @@ __at86rf230_detect_device(struct spi_device *spi, u16
*man_id, u8 *part,
u8 *version)
{
u8 data[4];
- u8 *buf = kmalloc(2, GFP_KERNEL);
+ u8 buf[2];
int status;
struct spi_message msg;
struct spi_transfer xfer = {
@@ -274,9 +274,6 @@ __at86rf230_detect_device(struct spi_device *spi, u16
*man_id, u8 *part,
};
u8 reg;
- if (!buf)
- return -ENOMEM;
-
for (reg = RG_PART_NUM; reg <= RG_MAN_ID_1; reg++) {
buf[0] = (reg & CMD_REG_MASK) | CMD_REG;
buf[1] = 0xff;
@@ -305,8 +302,6 @@ __at86rf230_detect_device(struct spi_device *spi, u16
*man_id, u8 *part,
*man_id = (data[3] << 8) | data[2];
}
- kfree(buf);
-
return status;
}
--
1.9.1
------------------------------------------------------------------------------
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