47 lines
1.6 KiB
Diff
47 lines
1.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: "Poluri, Sarat Chandra" <sarat.chandra.poluri@intel.com>
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Date: Tue, 9 Apr 2019 22:28:30 +0000
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Subject: [PATCH] media: ici: Fix system reboot upon stream stop after a fatal
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error in multi-streaming use case.
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ici_isys_frame_buf_stream_cancel should be called outside of the mutex and
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after ip->streaming set to 0. This avoids NULL pointer dereference in
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unmap_buf_virt.
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Change-Id: Ib9eab6b92ca0680fd220965b7b7a4d3dfa894b3e
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Tracked-On: PKT-2287
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Tracked-On: HSDES-1409169225
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Signed-off-by: Poluri, Sarat Chandra <sarat.chandra.poluri@intel.com>
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---
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drivers/media/pci/intel/ici/ici-isys-stream.c | 11 ++---------
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1 file changed, 2 insertions(+), 9 deletions(-)
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diff --git a/drivers/media/pci/intel/ici/ici-isys-stream.c b/drivers/media/pci/intel/ici/ici-isys-stream.c
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index ebcc72972fd0..09fcd02671fb 100644
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--- a/drivers/media/pci/intel/ici/ici-isys-stream.c
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+++ b/drivers/media/pci/intel/ici/ici-isys-stream.c
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@@ -960,18 +960,11 @@ static int ici_isys_stream_off(struct file *file, void *fh)
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if (ip->streaming)
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ici_isys_set_streaming(as, 0);
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- ici_isys_frame_buf_short_packet_destroy(as);
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- mutex_unlock(&as->isys->stream_mutex);
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-
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- ici_isys_frame_buf_stream_cancel(as);
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-
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- mutex_lock(&as->isys->stream_mutex);
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- //streaming always should be turned off last.
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- //This variable prevents other streams from
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- //starting before we are done with cleanup.
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ip->streaming = 0;
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mutex_unlock(&as->isys->stream_mutex);
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+ ici_isys_frame_buf_short_packet_destroy(as);
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+ ici_isys_frame_buf_stream_cancel(as);
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pipeline_set_power(as, 0);
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return 0;
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}
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--
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https://clearlinux.org
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