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thunderbolt: Fix for v6.6-rc7

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This includes a single commit that fixes a memory leak when DisplayPort
 bandwidth allocation request is being handled by the driver.
 
 This has been in linux-next with no reported issues.
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Merge tag 'thunderbolt-for-v6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-linus

Mika writes:

thunderbolt: Fix for v6.6-rc7

This includes a single commit that fixes a memory leak when DisplayPort
bandwidth allocation request is being handled by the driver.

This has been in linux-next with no reported issues.

* tag 'thunderbolt-for-v6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt:
  thunderbolt: Call tb_switch_put() once DisplayPort bandwidth request is finished
This commit is contained in:
Greg Kroah-Hartman 2023-10-17 19:25:42 +02:00
commit 8b695369a6
1 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/thunderbolt/tb.c
View File

@ -1907,14 +1907,14 @@ static void tb_handle_dp_bandwidth_request(struct work_struct *work)
in = &sw->ports[ev->port];
if (!tb_port_is_dpin(in)) {
tb_port_warn(in, "bandwidth request to non-DP IN adapter\n");
goto unlock;
goto put_sw;
}
tb_port_dbg(in, "handling bandwidth allocation request\n");
if (!usb4_dp_port_bandwidth_mode_enabled(in)) {
tb_port_warn(in, "bandwidth allocation mode not enabled\n");
goto unlock;
goto put_sw;
}
ret = usb4_dp_port_requested_bandwidth(in);
@ -1923,7 +1923,7 @@ static void tb_handle_dp_bandwidth_request(struct work_struct *work)
tb_port_dbg(in, "no bandwidth request active\n");
else
tb_port_warn(in, "failed to read requested bandwidth\n");
goto unlock;
goto put_sw;
}
requested_bw = ret;
@ -1932,7 +1932,7 @@ static void tb_handle_dp_bandwidth_request(struct work_struct *work)
tunnel = tb_find_tunnel(tb, TB_TUNNEL_DP, in, NULL);
if (!tunnel) {
tb_port_warn(in, "failed to find tunnel\n");
goto unlock;
goto put_sw;
}
out = tunnel->dst_port;
@ -1959,6 +1959,8 @@ static void tb_handle_dp_bandwidth_request(struct work_struct *work)
tb_recalc_estimated_bandwidth(tb);
}
put_sw:
tb_switch_put(sw);
unlock:
mutex_unlock(&tb->lock);