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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Lino Sanfilippo , Florian Fainelli , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Stefan Wahren Subject: [PATCH V4 01/15 net-next] qca_spi: Add check for kthread_stop Date: Sun, 28 Jan 2024 21:10:45 +0100 Message-Id: <20240128201059.6259-2-wahrenst@gmx.net> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240128201059.6259-1-wahrenst@gmx.net> References: <20240128201059.6259-1-wahrenst@gmx.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:AfxYoHf5IGBDGU2Xrvj5CO4LhdvOjncPUGYKr98mfwYamLDzI+5 0B4phhl/JO2X3U0/6wMUDbZ/2wBN2UR9m+Xyn2R6twnCA7rnkO7wzMDCWySEceDTF1DmHQm hCO55vd6zFtK0QHHTD2DOP3Bgh/bpj6MtqOpTQoMjLyemR+OPHwu2fOLIM21QQYWekaReFb KfMoxxFvFB+9vI5AS3nOw== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:QNuBhD05qr0=;kRf4KuQNIURDBXsBf1vEyWebEVO vnLFEtdvfZEbiFNTgMCzW3FJUFEcRV9jvZhu+SDxuzlbuy7iajUofiI4hKwSMYVhoXpQzYMOY HD41X8PLnl0MKBToHjPce7jmtcbDSMsIZ/6OqHYiIWqtQIQzSFMI6VnCYrs6N0CZ8VSCw12Lp oPv/KMelu8VGCbUA249EjH9gacuPqv7cdkiww9/YiCtlF0nA/he6KFSyeQ9T14Ybt6PLfWcGR vknbEjHIXbMpjQxZ5IJlfdubIOZDGcBkzgUR8NH6bmzjAiDaE24ouUNL5tXAGwILvrcWn/1af wzTFgvMhElfjtfl+s7TpvHjHba2IdMu2hosiYdffo2dsWiHX11XFhbynKCqV8tXO4wrlSHtPO OyFWCANck+alfz7e9fdM2iTRpRcvM3vCezRRjCedS7pX1X4Cv4zOOe7jCxny62jk2QO7O0OSN sAv1UT8mCJZuczaOi8nclDvJEKBnpn4MnRMkXP4ey8CMm2wNgaxphDzrsDQIEdiDifaQkYK0f cU+oMeknw53te3mPexYNP/lnFAJ2GLzvnIWREPA6oIa8s6AKuT+Z3VHy6wHfc+nd1kSzYh/iL pdn8I1uzNOTFi4r0epPGt9GzP4N/mSCuavwgDGjjfyJkj1VSTNJUll85VdimGNqOAUr4oJ6Yi Gpuq5snTjPh47u32bMVhJZbVNN3YqWF+q8XKPuCy1+IWfN2OqXO9mbtWyJDzWIoij0IrjPVrc 5MtLFy0+diAtHIR24EouQT6UKZTL+Y2F1LkZS9NYrjusbfhRWDHUiZsR6hBGqKZOMAnkGzri1 cG1/iMQzd7Nzo/yX/dmdoFzYZDWHFS11yC5jdPW2brUKEJLjawG0p0BqZ2VO4BxehtDTOgW2M oufYvLDHWaFQYotvJpdhA8ahr96xREDiziIusRCGzrbudb1kGY0ILnj31qfp224SGCdcZ4vkT eoRYMw== We better not rely on that spi_thread points to a running thread. So add an check for this. Signed-off-by: Stefan Wahren =2D-- 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/etherne= t/qualcomm/qca_spi.c index 5f3c11fb3fa2..77bab8bf5203 100644 =2D-- 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 =3D NULL; + if (qca->spi_thread) { + kthread_stop(qca->spi_thread); + qca->spi_thread =3D NULL; + } qcaspi_flush_tx_ring(qca); return 0; =2D- 2.34.1