| Message ID | 20231020140655.v5.6.I6405b1587446c157c6d6263957571f2b11f330a7@changeid |
|---|---|
| State | New |
| Headers | show |
| Series | r8152: Avoid writing garbage to the adapter's registers | expand |
On Fri, Oct 20, 2023 at 2:08 PM Douglas Anderson <dianders@chromium.org> wrote: > > If the adapter is unplugged while we're looping in r8153b_ups_en() / > r8153c_ups_en() we could end up looping for 10 seconds (20 ms * 500 > loops). Add code similar to what's done in other places in the driver > to check for unplug and bail. > > Signed-off-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Grant Grundler <grundler@chromium.org> > --- > > (no changes since v2) > > Changes in v2: > - ("Check for unplug in r8153b_ups_en() / r8153c_ups_en()") new for v2. > > drivers/net/usb/r8152.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c > index 9888bc43e903..982f9ca03e7a 100644 > --- a/drivers/net/usb/r8152.c > +++ b/drivers/net/usb/r8152.c > @@ -3663,6 +3663,8 @@ static void r8153b_ups_en(struct r8152 *tp, bool enable) > int i; > > for (i = 0; i < 500; i++) { > + if (test_bit(RTL8152_UNPLUG, &tp->flags)) > + return; > if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) & > AUTOLOAD_DONE) > break; > @@ -3703,6 +3705,8 @@ static void r8153c_ups_en(struct r8152 *tp, bool enable) > int i; > > for (i = 0; i < 500; i++) { > + if (test_bit(RTL8152_UNPLUG, &tp->flags)) > + return; > if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) & > AUTOLOAD_DONE) > break; > -- > 2.42.0.758.gaed0368e0e-goog >
On 10/20/2023 2:06 PM, Douglas Anderson wrote: > If the adapter is unplugged while we're looping in r8153b_ups_en() / > r8153c_ups_en() we could end up looping for 10 seconds (20 ms * 500 > loops). Add code similar to what's done in other places in the driver > to check for unplug and bail. > > Signed-off-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 9888bc43e903..982f9ca03e7a 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -3663,6 +3663,8 @@ static void r8153b_ups_en(struct r8152 *tp, bool enable) int i; for (i = 0; i < 500; i++) { + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return; if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) & AUTOLOAD_DONE) break; @@ -3703,6 +3705,8 @@ static void r8153c_ups_en(struct r8152 *tp, bool enable) int i; for (i = 0; i < 500; i++) { + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return; if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) & AUTOLOAD_DONE) break;
If the adapter is unplugged while we're looping in r8153b_ups_en() / r8153c_ups_en() we could end up looping for 10 seconds (20 ms * 500 loops). Add code similar to what's done in other places in the driver to check for unplug and bail. Signed-off-by: Douglas Anderson <dianders@chromium.org> --- (no changes since v2) Changes in v2: - ("Check for unplug in r8153b_ups_en() / r8153c_ups_en()") new for v2. drivers/net/usb/r8152.c | 4 ++++ 1 file changed, 4 insertions(+)