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Subject[PATCH v2 07/27] thunderbolt: Allow passing NULL to tb_ctl_free()
Date
Following the usual pattern used in many places, we allow passing NULL
pointer to tb_ctl_free(). Then the user can call the function regardless
if it has allocated control channel or not making the code bit simpler.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
drivers/thunderbolt/ctl.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/thunderbolt/ctl.c b/drivers/thunderbolt/ctl.c
index 889a32dd21e7..f8290a577b2b 100644
--- a/drivers/thunderbolt/ctl.c
+++ b/drivers/thunderbolt/ctl.c
@@ -520,6 +520,10 @@ struct tb_ctl *tb_ctl_alloc(struct tb_nhi *nhi, hotplug_cb cb, void *cb_data)
void tb_ctl_free(struct tb_ctl *ctl)
{
int i;
+
+ if (!ctl)
+ return;
+
if (ctl->rx)
ring_free(ctl->rx);
if (ctl->tx)
--
2.11.0
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