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authorLi Jun <jun.li@nxp.com>2019-07-17 16:06:45 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-07-30 11:04:09 +0200
commitfd5da3e2cc61b4a7c877172fdc9348c82cf6ccfc (patch)
tree595c4c25897a0a1cdb72cc40a310bde1acd967c6 /drivers/usb/typec
parent1957de95d425d1c06560069dc7277a73a8b28683 (diff)
usb: typec: tcpm: free log buf memory when remove debug file
The logbuffer memory should be freed when remove debug file. Cc: stable@vger.kernel.org # v4.15+ Fixes: 4b4e02c83167 ("typec: tcpm: Move out of staging") Signed-off-by: Li Jun <jun.li@nxp.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20190717080646.30421-1-jun.li@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/typec')
-rw-r--r--drivers/usb/typec/tcpm/tcpm.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index 77f71f602f73..7b6497c1031e 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -587,6 +587,15 @@ static void tcpm_debugfs_init(struct tcpm_port *port)
static void tcpm_debugfs_exit(struct tcpm_port *port)
{
+ int i;
+
+ mutex_lock(&port->logbuffer_lock);
+ for (i = 0; i < LOG_BUFFER_ENTRIES; i++) {
+ kfree(port->logbuffer[i]);
+ port->logbuffer[i] = NULL;
+ }
+ mutex_unlock(&port->logbuffer_lock);
+
debugfs_remove(port->dentry);
}