[PATCH net-next 2/7] net: ipa: don't return an error from ipa_interconnect_disable()

[Alex Elder]

If disabling interconnects fails there's not a lot we can do.  The
only two callers of ipa_interconnect_disable() ignore the return
value, so just give the function a void return type.

Print an error message if disabling any of the interconnects is not
successful.  Return (and print) only the first error seen.

Signed-off-by: Alex Elder <el...@linaro.org>
---
 drivers/net/ipa/ipa_clock.c | 31 +++++++++++--------------------
 1 file changed, 11 insertions(+), 20 deletions(-)

diff --git a/drivers/net/ipa/ipa_clock.c b/drivers/net/ipa/ipa_clock.c
index 459c357e09678..baedb481fe824 100644
--- a/drivers/net/ipa/ipa_clock.c
+++ b/drivers/net/ipa/ipa_clock.c
@@ -137,36 +137,27 @@ static int ipa_interconnect_enable(struct ipa *ipa)
 }
 
 /* To disable an interconnect, we just its bandwidth to 0 */
-static int ipa_interconnect_disable(struct ipa *ipa)
+static void ipa_interconnect_disable(struct ipa *ipa)
 {
-       const struct ipa_interconnect_data *data;
        struct ipa_clock *clock = ipa->clock;
+       int result = 0;
        int ret;
 
        ret = icc_set_bw(clock->memory_path, 0, 0);
        if (ret)
-               return ret;
+               result = ret;
 
        ret = icc_set_bw(clock->imem_path, 0, 0);
-       if (ret)
-               goto err_memory_path_reenable;
+       if (ret && !result)
+               result = ret;
 
        ret = icc_set_bw(clock->config_path, 0, 0);
-       if (ret)
-               goto err_imem_path_reenable;
+       if (ret && !result)
+               result = ret;
 
-       return 0;
-
-err_imem_path_reenable:
-       data = &clock->interconnect_data[IPA_INTERCONNECT_IMEM];
-       (void)icc_set_bw(clock->imem_path, data->average_bandwidth,
-                        data->peak_bandwidth);
-err_memory_path_reenable:
-       data = &clock->interconnect_data[IPA_INTERCONNECT_MEMORY];
-       (void)icc_set_bw(clock->memory_path, data->average_bandwidth,
-                        data->peak_bandwidth);
-
-       return ret;
+       if (result)
+               dev_err(&ipa->pdev->dev,
+                       "error %d disabling IPA interconnects\n", ret);
 }
 
 /* Turn on IPA clocks, including interconnects */
@@ -189,7 +180,7 @@ static int ipa_clock_enable(struct ipa *ipa)
 static void ipa_clock_disable(struct ipa *ipa)
 {
        clk_disable_unprepare(ipa->clock->core);
-       (void)ipa_interconnect_disable(ipa);
+       ipa_interconnect_disable(ipa);
 }
 
 /* Get an IPA clock reference, but only if the reference count is
-- 
2.20.1