RE: RE: [PATCH v2] usb: core:hub.c: do not print error log on -enomem

[Atul Raj]

 changes in v2
        - added braces as suggested.

 drivers/usb/core/hub.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 749d595..82059f26 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -816,9 +816,10 @@ int usb_hub_clear_tt_buffer(struct urb *urb)
         * there can be many TTs per hub).  even if they're uncommon.
         */
        clear = kmalloc(sizeof *clear, GFP_ATOMIC);
-       if (clear == NULL)
+       if (clear == NULL) {
                /* FIXME recover somehow ... RESET_TT? */
                return -ENOMEM;
+       }

        /* info that CLEAR_TT_BUFFER needs */
        clear->tt = tt->multi ? udev->ttport : 1;
--
2.10.2.windows.1



> s/enomem/ENOMEM
 >  
 > On 30-11-16, 06:32, Atul Raj wrote:
 > > All kmalloc-based functions print enough information on failures.
 > > 
 > > Signed-off-by: Atul Raj <atul.r@xxxxxxxxxxx>
 > > ---
 > >  drivers/usb/core/hub.c | 4 +---
 > >  1 file changed, 1 insertion(+), 3 deletions(-)
 > > 
 > > diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
 > > index cbb1467..749d595 100644
 > > --- a/drivers/usb/core/hub.c
 > > +++ b/drivers/usb/core/hub.c
 > > @@ -816,11 +816,9 @@ int usb_hub_clear_tt_buffer(struct urb *urb)
 > >          * there can be many TTs per hub).  even if they're uncommon.
 > >          */
 > >         clear = kmalloc(sizeof *clear, GFP_ATOMIC);
 > > -       if (clear == NULL) {
 > > -               dev_err(&udev->dev, "can't save CLEAR_TT_BUFFER state\n");
 > > +       if (clear == NULL)
 > >                 /* FIXME recover somehow ... RESET_TT? */
 > >                 return -ENOMEM;
 >  
 > It is still preferred to keep {} here as comment also takes a line.
 >  
 > > -       }
 > > 
 > >         /* info that CLEAR_TT_BUFFER needs */
 > >         clear->tt = tt->multi ? udev->ttport : 1;
 > > --
 > > 2.10.2.windows.1
 >  
 >  
 > -- 
 > viresh
 >  
 >