Commit 7206a4c8 authored May 09, 2014 by Guang Jian Zeng

usb: ks_bridge: Check dev status in ksb_fs_release function



If the ksb device is disconnected before calling ksb_fs_release,
the device pointer may already be freed, which will lead to a
crash when calling dev_dbg. Fix this by checking the connection
status before calling dev_dbg.

CRs-fixed: 661871
Change-Id: I04c9e861f519f5fcbe57a8c4edf1038647c09783
Signed-off-by: Guang Jian Zeng <gzeng@codeaurora.org>

parent 0c694e68

drivers/usb/misc/ks_bridge.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -421,6 +421,7 @@ static int ksb_fs_release(struct inode ip, struct file fp)
		{
		struct ks_bridge *ksb = fp->private_data;

		if (test_bit(USB_DEV_CONNECTED, &ksb->flags))
		dev_dbg(ksb->device, ":%s", ksb->id_info.name);
		dbg_log_event(ksb, "FS-RELEASE", 0, 0);