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caif_virtio: fix wrong pointer check in cfv_probe()

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[ Upstream commit a466fd7e9f ]

del_vqs() frees virtqueues, therefore cfv->vq_tx pointer should be checked
for NULL before calling it, not cfv->vdev. Also the current implementation
is redundant because the pointer cfv->vdev is dereferenced before it is
checked for NULL.

Fix this by checking cfv->vq_tx for NULL instead of cfv->vdev before
calling del_vqs().

Fixes: 0d2e1a2926 ("caif_virtio: Introduce caif over virtio")
Signed-off-by: Vitaliy Shevtsov <v.shevtsov@mt-integration.ru>
Reviewed-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Link: https://patch.msgid.link/20250227184716.4715-1-v.shevtsov@mt-integration.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Vitaliy Shevtsov
2025-03-13 12:51:04 +01:00
committed by Greg Kroah-Hartman
parent 455217ac9d
commit 8e4e08ca4c
1 changed files with 1 additions and 1 deletions
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drivers/net/caif/caif_virtio.c
+1 -1
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@@ -744,7 +744,7 @@ err:
if (cfv->vr_rx)
vdev->vringh_config->del_vrhs(cfv->vdev);
if (cfv->vdev)
if (cfv->vq_tx)
vdev->config->del_vqs(cfv->vdev);
free_netdev(netdev);
return err;