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authorMika Westerberg <mika.westerberg@linux.intel.com>2017-06-06 15:24:59 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-09 12:42:41 +0300
commitc9843ebbb83a120094aa3a55bc0190d285e8384a (patch)
treed296156a193479e70f2f14c366105c602c767f39 /drivers/thunderbolt/ctl.c
parentda2da04b8d4476a411feb2a12b47792aebbc142f (diff)
downloadlinux-c9843ebbb83a120094aa3a55bc0190d285e8384a.tar.xz
thunderbolt: Allow passing NULL to tb_ctl_free()
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. Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andreas Noever <andreas.noever@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/thunderbolt/ctl.c')
-rw-r--r--drivers/thunderbolt/ctl.c4
1 files changed, 4 insertions, 0 deletions
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 @@ err:
void tb_ctl_free(struct tb_ctl *ctl)
{
int i;
+
+ if (!ctl)
+ return;
+
if (ctl->rx)
ring_free(ctl->rx);
if (ctl->tx)