From: Vinicius Costa Gomes Date: Wed, 21 Jan 2026 18:34:36 +0000 (-0800) Subject: dmaengine: idxd: Fix leaking event log memory X-Git-Tag: v6.12.80~4 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d94f9b0ba28a205caf95902ee88b42bdb8af83d0;p=thirdparty%2Fkernel%2Fstable.git dmaengine: idxd: Fix leaking event log memory [ Upstream commit ee66bc29578391c9b48523dc9119af67bd5c7c0f ] During the device remove process, the device is reset, causing the configuration registers to go back to their default state, which is zero. As the driver is checking if the event log support was enabled before deallocating, it will fail if a reset happened before. Do not check if the support was enabled, the check for 'idxd->evl' being valid (only allocated if the HW capability is available) is enough. Fixes: 244da66cda35 ("dmaengine: idxd: setup event log configuration") Reviewed-by: Dave Jiang Signed-off-by: Vinicius Costa Gomes Link: https://patch.msgid.link/20260121-idxd-fix-flr-on-kernel-queues-v3-v3-10-7ed70658a9d1@intel.com Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin --- diff --git a/drivers/dma/idxd/device.c b/drivers/dma/idxd/device.c index d8e0a12f62ace..063bf7969b71a 100644 --- a/drivers/dma/idxd/device.c +++ b/drivers/dma/idxd/device.c @@ -815,10 +815,6 @@ static void idxd_device_evl_free(struct idxd_device *idxd) struct device *dev = &idxd->pdev->dev; struct idxd_evl *evl = idxd->evl; - gencfg.bits = ioread32(idxd->reg_base + IDXD_GENCFG_OFFSET); - if (!gencfg.evl_en) - return; - mutex_lock(&evl->lock); gencfg.evl_en = 0; iowrite32(gencfg.bits, idxd->reg_base + IDXD_GENCFG_OFFSET);