[media] exynos-gsc: Clean up file handle in open() error path

The file handle is not yet added in the vfd list. So no need
to call v4l2_fh_del(&ctx->fh) if it fails to create controls.
Signed-off-by: Shailendra Verma <shailendra.v@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/platform/exynos-gsc/gsc-m2m.c

@@ -675,8 +675,8 @@ static int gsc_m2m_open(struct file *file)
 
 error_ctrls:
 	gsc_ctrls_delete(ctx);
-error_fh:
 	v4l2_fh_del(&ctx->fh);
+error_fh:
 	v4l2_fh_exit(&ctx->fh);
 	kfree(ctx);
 unlock: