[PATCH V4 01/15 net-next] qca_spi: Add check for kthread_stop
From: Stefan Wahren <wahrenst@gmx.net>
Date: 2024-01-28 20:11:31
Also in:
lkml
Subsystem:
networking drivers, qualcomm atheros qca7k ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Stefan Wahren, Linus Torvalds
We better not rely on that spi_thread points to a running thread. So add an check for this. Signed-off-by: Stefan Wahren <wahrenst@gmx.net> --- drivers/net/ethernet/qualcomm/qca_spi.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/qualcomm/qca_spi.c b/drivers/net/ethernet/qualcomm/qca_spi.c
index 5f3c11fb3fa2..77bab8bf5203 100644
--- a/drivers/net/ethernet/qualcomm/qca_spi.c
+++ b/drivers/net/ethernet/qualcomm/qca_spi.c@@ -730,8 +730,10 @@ qcaspi_netdev_close(struct net_device *dev) qcaspi_write_register(qca, SPI_REG_INTR_ENABLE, 0, wr_verify); free_irq(qca->spi_dev->irq, qca); - kthread_stop(qca->spi_thread); - qca->spi_thread = NULL; + if (qca->spi_thread) { + kthread_stop(qca->spi_thread); + qca->spi_thread = NULL; + } qcaspi_flush_tx_ring(qca); return 0; --
2.34.1