[PATCH V3] usbcore: Select only first configuration for non-UAC3 compliant devices
From: Saranya Gopal In most of the UAC1 and UAC2 audio devices, the first configuration is most often the best configuration. However, with recent patch to support UAC3 configuration, second configuration was unintentionally chosen for some of the UAC1/2 devices that had more than one configuration. This was because of the existing check after the audio config check which selected any config which had a non-vendor class. This patch fixes this issue. Fixes: f13912d3f014 ("usbcore: Select UAC3 configuration for audio if present") Reported-by: Con Kolivas Signed-off-by: Saranya Gopal Tested-by: Con Kolivas --- Changes from V2: Added Tested-by tag Changes from V1: Added full commit name and more SHA1 numbers in Fixes tag drivers/usb/core/generic.c | 9 ++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c index 356b05c..f713cec 100644 --- a/drivers/usb/core/generic.c +++ b/drivers/usb/core/generic.c @@ -143,9 +143,12 @@ int usb_choose_configuration(struct usb_device *udev) continue; } - if (i > 0 && desc && is_audio(desc) && is_uac3_config(desc)) { - best = c; - break; + if (i > 0 && desc && is_audio(desc)) { + if (is_uac3_config(desc)) { + best = c; + break; + } + continue; } /* From the remaining configs, choose the first one whose -- 1.9.1
[PATCH V2] usbcore: Select only first configuration for non-UAC3 compliant devices
From: Saranya Gopal In most of the UAC1 and UAC2 audio devices, the first configuration is most often the best configuration. However, with recent patch to support UAC3 configuration, second configuration was unintentionally chosen for some of the UAC1/2 devices that had more than one configuration. This was because of the existing check after the audio config check which selected any config which had a non-vendor class. This patch fixes this issue. Fixes: f13912d3f014 ("usbcore: Select UAC3 configuration for audio if present") Reported-by: Con Kolivas Signed-off-by: Saranya Gopal --- Changes from V1: Added full commit name and more SHA1 numbers in Fixes tag drivers/usb/core/generic.c | 9 ++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c index 356b05c..f713cec 100644 --- a/drivers/usb/core/generic.c +++ b/drivers/usb/core/generic.c @@ -143,9 +143,12 @@ int usb_choose_configuration(struct usb_device *udev) continue; } - if (i > 0 && desc && is_audio(desc) && is_uac3_config(desc)) { - best = c; - break; + if (i > 0 && desc && is_audio(desc)) { + if (is_uac3_config(desc)) { + best = c; + break; + } + continue; } /* From the remaining configs, choose the first one whose -- 1.9.1
[PATCH] usbcore: Select only first configuration for non-UAC3 compliant devices
From: Saranya Gopal In most of the UAC1 and UAC2 audio devices, the first configuration is most often the best configuration. However, with recent patch to support UAC3 configuration, second configuration was unintentionally chosen for some of the UAC1/2 devices that had more than one configuration. This was because of the existing check after the audio config check which selected any config which had a non-vendor class. This patch fixes this issue. Fixes: f13912d (Select UAC3 configuration for audio if present) Reported-by: Con Kolivas Signed-off-by: Saranya Gopal --- drivers/usb/core/generic.c | 9 ++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c index 356b05c..f713cec 100644 --- a/drivers/usb/core/generic.c +++ b/drivers/usb/core/generic.c @@ -143,9 +143,12 @@ int usb_choose_configuration(struct usb_device *udev) continue; } - if (i > 0 && desc && is_audio(desc) && is_uac3_config(desc)) { - best = c; - break; + if (i > 0 && desc && is_audio(desc)) { + if (is_uac3_config(desc)) { + best = c; + break; + } + continue; } /* From the remaining configs, choose the first one whose -- 1.9.1