From: Todd Poynor <toddpoynor@xxxxxxxxxx>
gasket_handle_ioctl() calls gasket_get_ioctl_permissions_cb() twice;
simplify the code and avoid duplicated work by fetching the callback
pointer only once.
Reported-by: Dmitry Torokhov <dtor@xxxxxxxxxxxx>
Signed-off-by: Todd Poynor <toddpoynor@xxxxxxxxxx>
---
drivers/staging/gasket/gasket_ioctl.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/gasket/gasket_ioctl.c b/drivers/staging/gasket/gasket_ioctl.c
index 2e2c9b997093b..dbe9fdef0c268 100644
--- a/drivers/staging/gasket/gasket_ioctl.c
+++ b/drivers/staging/gasket/gasket_ioctl.c
@@ -55,14 +55,15 @@ long gasket_handle_ioctl(struct file *filp, uint cmd, void __user *argp)
{
struct gasket_dev *gasket_dev;
unsigned long arg = (unsigned long)argp;
+ gasket_ioctl_permissions_cb_t ioctl_permissions_cb;
int retval;
gasket_dev = (struct gasket_dev *)filp->private_data;
trace_gasket_ioctl_entry(gasket_dev->dev_info.name, cmd);
- if (gasket_get_ioctl_permissions_cb(gasket_dev)) {
- retval = gasket_get_ioctl_permissions_cb(gasket_dev)(
- filp, cmd, argp);
+ ioctl_permissions_cb = gasket_get_ioctl_permissions_cb(gasket_dev);
+ if (ioctl_permissions_cb) {
+ retval = ioctl_permissions_cb(filp, cmd, argp);
if (retval < 0) {
trace_gasket_ioctl_exit(-EPERM);
return retval;
--
2.18.0.233.g985f88cf7e-goog
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